Falk UltraMax Concentric Gear Drives

Transcription

Gear Catalog
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Falk UltraMax Concentric Gear Drives
(Inch)
Falk UltraMax Concentric Gear Drive
To learn more about the Falk® UltraMax® Concentric Gear Drive,
go to www.rexnord.com, where you’ll find:
Product information • Brochures • Catalogs • Manuals
866-REXNORD/866-739-6673 (toll-free within the U.S.) or 414-643-2366 (Outside the U.S.)
Table Of Contents
Description
Page
Falk® UltraMax® Concentric Gear Drives Basic Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Conditions Affecting Selection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6, 7
Service Factors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8, 9
Load Classification Factors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10, 11
How to Select/Quick Selection Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Drive Nomenclature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Drive Selection
How to Order UltraMax Drives. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Quick Selection Tables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 - 31
How to Select/Horsepower & Torque Ratings Table Method. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Horsepower & Torque Ratings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 - 41
Technical Data
Thermal Horsepower. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42, 43
Basic Thermal Ratings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44, 45, 46
Cooling for UltraMax Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Overhung Loads. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48, 49
LSS Overhung Load Ratings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
HSS Overhung Load Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 - 54
LSS Thrust Loads. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Exact Ratios. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Availability & Compatibility of Accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Dimensions and Accessories
Double, Triple & Quadruple Reduction Dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58 - 61
Motor Mounts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62, 63
Motor Adapters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Motor Plates. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Slide Rails. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Slide Bases . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Backstops. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68, 69
Electric Fans. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Cooling Tubes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Reliability Package. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72, 73
Coupling Guards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
© Rexnord 2014
(311-110) 3
Notes
4 (311-110)
© Rexnord 2014
Falk UltraMax Concentric Gear Drives Basic Information
Safety Notes
Gear Drive Ratings
Falk Gear Drives — The Falk and Rexnord name on the gear drive is the purchaser’s
assurance that the drive was engineered, rated and manufactured to sound design
practices.
All gear drive ratings in this catalog allow 100% overload for starting loads and
momentary overloads for electric-motor-driven applications operating ten hours per
day under uniform conditions (unity service factor). For other conditions, compute an
equivalent power by multiplying the actual power required for the application by the
appropriate service factor.
When one prime mover drives two pieces of equipment, one of which is either a standard
Falk/Rexnord geared drive or a customer standard geared drive, the division of power
between each machine is the responsibility of the customer. The power supplied to the
geared drive must be equal to or less than the power for which the drive was selected,
using the appropriate service factor for the application. The customer must also assume
the responsibility of isolating the geared drive from any vibratory or transient load
induced by the driven equipment.
Install and operate Rexnord products in conformance with applicable local and
national safety codes and per Rexnord installation manuals which are shipped with
gear drives and are also available upon request. Suitable guards for rotating members
may be purchased from Rexnord as optional accessories. Consult your local Rexnord
representative for complete details.
People Conveying Equipment — Selection of Rexnord gear drives for applications
whose primary purpose is the transportation of people is not approved. This includes
such applications as freight or passenger elevators, escalators, man-lift platforms, and
ski tows and ski lifts.
If the primary purpose of the application is material conveyance and occasionally people
are transported, the Rexnord warranty may remain in effect, provided the design and load
conditions are not exceeded and certification to the appropriate safety codes and load
conditions has been obtained by the system designer or end user from the appropriate
enforcement authorities.
Gear Drive Identification — Tables in this catalog identify gear drives by size, type
and ratio. See Drive Nomenclature page 13.
Horsepower & Torque — Gear drive mechanical horsepower and torque ratings are
tabulated in the catalog to permit selections for specific application requirements. NOTE:
Drives may be selected using the Quick Selection tables under most circumstances. Refer
to those tables starting on page 15 for selection guidelines.
Thermal Ratings must be considered when selecting a gear drive. Refer to page 42
for more information.
Stored & Inactive Drives — Each gear drive is spin-tested with a rust preventive oil
that will protect parts against rust for a period of four months in an outdoor shelter or
12 months in a dry building after shipment from the Factory.
Periodically inspect stored or inactive drives and spray internal parts with rust inhibitor
every six months or more often, if necessary. Drain oil before adding rust inhibitor.
Indoor dry storage is recommended.
Drives ordered for extended storage can be treated at the Factory with a special
preservative and sealed to rust-proof parts for periods longer than those cited above, if
specified on the order.
Refer to appropriate service manual for extended storage of gear drives which have been
in service.
Factory Warranty — We’re so confident in the performance and reliability of our
latest generation of Falk gear drives that we’re backing this comprehensive offering with
the best standard warranty in the business. Our full, three-year heavy-duty warranty
provides shaft-to-shaft protection on all Falk components – including bearings and seals
(warranty extends for three years from date of shipment). It’s an industry first and one
more powerful reason why Falk is your ultimate bottom-line value.
See Extended Warranty statement (100-003) on our website: www.rexnord.com/terms
© Rexnord 2014
(311-110) 5
Conditions Affecting Selection
Non-Standard Application Procedures
The following conditions may affect the UltraMax gear drive selection procedure, drive
size and auxiliary equipment being furnished.
Excessive Overloads — The maximum momentary or starting load must not exceed
200% of rated load (100% overload). Rated load is defined as gear drive rating with a
service factor of 1.0. If the maximum starting or momentary load exceeds the above
conditions, compute a second equivalent power rating by dividing the peak load by two.
The gear drive selected must have capacity equal to, or in excess of, the larger equivalent
power rating.
Frequency of Starts — Starting frequency is an important consideration when
selecting a gear drive. Applications involving 2 to 3 equally spaced starts per hour must
utilize a minimum 1.5 service factor for unloaded starts, and a minimum 1.75 service
factor for fully loaded starts. For applications involving more than 3 starts per hour, refer
to Rexnord the application specifics such as starting frequency and maximum starting
torque. AC motors also have similar limitations. The addition of a fluid coupling as a soft
start device would increase the number of allowable starts.
Reversing Service — Applications involving either more than 20 reversals per ten
hour period, or less than 20 reversals per ten hour period with peak torques greater than
200% of normal load must be referred to the Factory.
Brake-Equipped Applications — When a gear drive is equipped with a “working”
brake that is used to decelerate the motion of the system and the brake is located between
the prime mover and the gear drive, select the drive based on the brake rating or the
highest equivalent power rating, whichever is greater. If the brake is used for holding only
and is applied after the motion of the system has come to rest, the brake rating must be
less than 200% of the catalog rating. Refer the application to the Factory. Also refer to the
Factory all applications in which the brake is located on the output shaft of the gear drive.
Oversized Prime Mover — Published service factors do not cover applications that
require oversize prime movers for high-energy or peak loads. Refer such applications to
the Factory for selection of suitable drives.
Speed Variation or Multi-Speed Applications — Type FC and FZ gear drives
offered in this catalog are designed to operate with splash lubrication on any singlespeed application and any ratio shown in the catalog unless otherwise noted. It is
essential that all orders indicate the desired operating speed and ratio so that the proper
internal oil distribution accessories can be supplied for the specific speed.
Application-Adjusted Thermal Rating, page 42 — The Application-Adjusted
Thermal Rating is the actual power rating without service factor that a gear drive will
transmit continually for three hours or more without overheating. The ApplicationAdjusted Thermal Rating considers the environmental factors of the application which
will affect the ability of the drive to dissipate heat. These factors include ambient
temperature, air movement, altitude (thin air does not remove heat effectively), inlet water
temperature and duty cycle (percentage of an hour that the drive operates). Factors for
these conditions must be used to modify the Basic Thermal Rating when determining the
Application-Adjusted Thermal Rating.
Checking the thermal rating is extremely important, for if a gear drive creates heat faster
than it can be dissipated, severe damage may occur.
Thermal ratings need not be considered when the operating period does not exceed
three hours and the shutdown time equals or exceeds the running time. However, when
the running time exceeds the shutdown time, selection must be made on the basis of
adequate thermal rating using the Application-Adjusted Thermal Rating.
Effects of Solar Energy — If a drive operates in the sun at ambient temperatures
over 100°F (38°C), then special measures must be taken to protect the drive from solar
energy. This protection can consist of a canopy over the drive or reflective paint on the
drive. If neither is possible, additional cooling may be required, such as shaft fans,
electric fans, cooling tubes or heat exchangers.
Overhung Loads & Thrust Loads — The overhung load and thrust load ratings
published in this catalog are based on a service factor of unity and a combination of
the most unfavorable conditions of rotation, speed, direction of applied load and drive
loading. If the calculated load exceeds the published value, or if an overhung load
and thrust load are applied simultaneously to a shaft, refer to tables and guidelines on
pages 48-55.
Product Modifications — Rexnord can supply special product modifications to
suit your application needs. Contact your local Rexnord representative for housing
modifications, special ratios, special shafts, special mounting conditions, accessory
modifications and other special application requirements.
These drives are assembled with a variety of standard internal lubrication components
such as oil pans and oil deflectors to ensure proper splash lubrication. In addition,
different oil levels are necessary for various drive sizes, speeds and ratios. Consequently,
to operate an existing drive at different speeds from those shown on the nameplate, full
application and nameplate information must be referred to the Factory for review of the
lubrication system.
All variable or multi-speed applications will be referred to the Engineering Department
to specify lubrication components for adequate lubrication at the slowest speed, without
excessive heating or churning at the highest speed. It is essential that all orders indicate
minimum and maximum speeds, as well as the speed duration cycles.
When selecting gear drives for multi-speed or variable speed applications, determine the
speed which develops the greatest torque and select the drive on this basis. If the speed
is not listed in the selection table, use the next lower speed.
6 (311-110)
© Rexnord 2014
Conditions Affecting Selection
Non-Standard Motors
Motor Brackets
Factory approval is required for motors and motor positions that vary from those shown
in this catalog. Motor brackets are designed to suit the standard Type T10 Steelflex®
couplings furnished with the drives and current standard 1750 rpm, single-speed, A-C,
NEMA, T & U series motor frames. Use of oversize motors, the extending or modifying
of motor brackets, addition of clutches, brakes, etc., require Factory approval. Normally,
motor plates are recommended for these applications.
Motor brackets provide an economical “soft” mounting for standard NEMA T & U-frame
and IEC B3 induction type electric motors. It is expected that the weight, location and
starting torque of the motor will cause cantilevered motor brackets to deflect downward
or twist to varying degrees. The gear drive/motor/coupling selections found in the
Rexnord catalog are engineered to be within acceptable deflection limits as determined by
Rexnord. However, because the motor bracket is a “soft” motor support, deflection and
vibration magnitude of the bracket may exceed levels normally considered acceptable for
rigidly, “hard”-mounted machinery.
Mounting Positions
For applications using other than pre-selected standard gear drive/motor/coupling
combinations, the use of a motor plate is recommended. If a motor bracket is to be used,
it becomes the customer’s responsibility to support the rear of the motor bracket as
necessary to diminish motor bracket deflection and vibration to within satisfactory levels
determined by the customer. For recommended bracket support, contact the Factory.
UltraMax drives can be modified to permit mounting in positions other than conventional
floor mounting. Some of these include ceiling, wall and various inclined vertical and
tilted positions. Consult the Factory to determine what modifications are required for
your specific application.
Use of oversized motors, the extending or modifying of the motor brackets, addition of
clutches, brakes, etc., require Factory approval. Motor plates are recommended for these
applications.
L.S.
END
VIEW
LEFT HAND TILT
RIGHT HAND TILT
OUTPUT SHAFT DOWN
OUTPUT SHAFT UP
Maximum Standard Allowable Tilt & Incline Mounting Limits ➀
Tilted ➁
Triple Reduction
Inclined
Triple Reduction
L.S. Shaft
L.S. Shaft
Down
Up
Drive
Size
➀
Left-Hand
Right-Hand
Left-Hand
Right-Hand
2040
5°
5°
5°
5°
–
–
5°
10°
5°
10°
–
–
2050
2°
5°
2°
5°
10°
5°
2°
10°
2°
10°
2°
10°
2060
5°
5°
5°
5°
5°
5°
5°
2°
2°
2°
2°
2°
2070
5°
5°
5°
5°
5°
5°
5°
2°
2°
2°
2°
2°
2080
5°
5°
5°
5°
5°
5°
5°
2°
5°
2°
2°
2°
2090
5°
5°
5°
5°
5°
5°
5°
2°
5°
2°
5°
2°
2100
5°
5°
5°
5°
5°
5°
5°
2°
5°
2°
5°
2°
2110
5°
5°
5°
5°
5°
5°
5°
2°
5°
2°
5°
2°
2120
5°
5°
5°
5°
5°
5°
5°
2°
5°
2°
5°
2°
2130
5°
5°
5°
5°
5°
5°
5°
2°
5°
2°
5°
2°
Double Reduction
Quadruple Reduction
Left-Hand
Right-Hand
Double Reduction
L.S. Shaft
L.S. Shaft
Down
Up
Quadruple Reduction
L.S. Shaft
L.S. Shaft
Down
Up
➀ Maximum limits shown above apply to standard Type FC/FZ drives without modification. For applications requiring higher tilt or incline angles, refer to Factory. Oil level must be
checked when drive is in the tilted or inclined position.
➁ Size 2060-2130 drives: dipstick must be located on high side of drive as shown in picture.
© Rexnord 2014
(311-110) 7
Service Factors
Table 3 — Service Factors Listed by Industry
Table 1 — Class/Service Factor Conversion Table
Class
Service Factor
I
II
III
1.00
1.41
2.00
(For electric motor, steam turbine or hydraulic motor drives, recommendations are
MINIMUM and normal conditions are assumed.)
Industry
Service Factors
UltraMax drives may be selected by Service Factor or Load Classification. Selections may
vary, so compare Service Factor against Load Classification on page 10 or page 11.
Selecting the lowest Service Factor from Table 1 will result in the most economical
selection.
A gear drive is rated to a specific application by the use of Service Factor. Each application
has its conditions and operating requirements. These have been analyzed and cataloged.
Numerical values, based on field experience, have been assigned to these classifications
for intermittent service of 3 to 10 hours per day and for service over 10 hours per day and
also for the type of prime mover, electric motor or engine. Values for most applications are
listed by application on page 9, Table 4 and by industry at right, Table 3. Refer unlisted
applications to the Factory.
Since most industrial applications are electric-motor-driven, Service Factors are based on
the use of electric motors. These factors can be easily converted to engine-drive factors as
outlined in Table 2.
Service Factors are based on the assumption that the system is free of dynamic vibrations,
as explained in the Basic Information section, and that maximum momentary or starting
loads do not exceed 200% of the rated load. Refer applications subject to repetitive shocks
and applications where exceedingly high-energy load must be absorbed, as when stalling,
to the Factory for special considerations.
Occasional & Intermittent Service or Engine-Driven Applications
Engine-driven applications and applications operating up to 3 hours per day, continuously
or intermittently, require adjusted Service Factors. Determine normal Service Factor for
the application from the 3 to 10 hours per day column in Table 3 or Table 4. Next, in the
first column of Table 2 below, find this same Service Factor. Then, to the right, under the
desired hours of service and prime mover, locate the converted Service Factor.
For example, from Table 4, the Service Factor is 1.25 for a uniformly-loaded belt conveyor.
From Table 1, for the same application the following are the Service Factors for various
conditions.
1. Engine-driven (multi-cylinder): 3 to 10 hours per day, use 1.50.
2. Engine-driven (multi-cylinder): over 10 hours per day, use 1.75.
3. Motor-driven (electric): up to 3 hours intermittently, use 1.00.
Table 2 — Service Factor Conversions
Table 3 or Table 4
3 to 10 Hour
Service Factor
3 to 10 Hours
per Day
Multi-Cyl.
Engine ➁
Over 10 Hours
per Day
Multi-Cyl.
Engine ➁
1.00 (Class I)
1.25
1.41 (Class II)
1.50
1.75
2.00 (Class III)
1.25
1.50
1.75
1.75
2.00
2.25
1.50
1.75
2.00
2.00
2.25
2.50
Intermittent – Up to
3 Hours per Day ➀
Multi-Cyl.
Motor
Engine ➁
1.00
1.00
1.25
1.25
1.50
1.75
1.00
1.25
1.50
1.50
1.75
2.00
➀ For applications operating one half hour or less per day and applications driven by
single-cylinder engines, refer to Factory.
➁ These service factors are based on the assumption that the system is free from serious
critical and torsional vibrations and that maximum momentary or starting loads do not
exceed 200% of the normal load.
➂ Service factors for paper mill applications are applied to the nameplate rating of
the electric drive motor at the motor-rated base speed and are consistent with those
shown in TAPPI standards.
➃ Anti-friction bearings only.
➄ A service factor of 1.00 may be applied at base speed of a super calender operating
over a speed range of part constant hp and part constant torque, where the constant
hp speed range is greater than 1.5 to 1. A service factor of 1.25 is applicable to
super calenders operating at constant torque over the entire speed range or where the
constant hp speed range is less than 1.5 to 1.
8 (311-110)
Service
3 to Over
10 10
Hour Hour
BOTTLING AND BREWING
Bottling Machinery................................... 1.00 1.25
Brew Kettles, Continuous Duty................. 1.25 1.25
Can Filling Machines............................... 1.00 1.25
Cookers — Continuous Duty................... 1.25 1.25
Mash Tubs — Continuous Duty.............. 1.25 1.25
Scale Hoppers — Frequent Starts........... 1.25 1.50
CLAY WORKING INDUSTRY
Brick Press............................................... 1.75 2.00
Briquette Machines.................................. 1.75 2.00
Clay Working Machinery.......................... 1.25 1.50
Pug Mills................................................. 1.25 1.50
DISTILLING DREDGES
See Brewing
Cable Reels, Conveyors........................... 1.25 1.50
Cutter Head, Jig Drives & Pumps............. 2.00 2.00
Maneuvering Winches.............................. 1.75 2.00
Screen Drives........................................... 1.75 2.00
Stackers, Utility Winches.......................... 1.25 1.50
FOOD INDUSTRY
Beet Slicers.............................................. 1.25 1.50
Bottling, Can Filling Machine................... 1.00 1.25
Cereal Cookers......................................... 1.00 1.25
Dough Mixers, Meat Grinders.................. 1.25 1.50
LUMBER INDUSTRY
Barkers — Spindle Feed.......................... 1.25 1.50
Barkers — Main Drive............................. 1.75 1.75
Carriage Drive............................................Refer to Factory
Chains — Floor....................................... 1.50 1.50
Chains — Green...................................... 1.50 1.75
Conveyors
Burner.............................................. 1.25 1.50
Main or Heavy-Duty......................... 1.50 1.50
Main Log.......................................... 1.75 2.00
Re-Saw Merry-Go-Round................. 1.25 1.50
Slab.................................................. 1.75 2.00
Transfer............................................. 1.25 1.50
Cut-Off Saws — Chain & Drag............... 1.50 1.75
Debarking Drums..................................... 1.75 2.00
Feeds — Edger........................................ 1.25 1.50
Feeds — Gang......................................... 1.75 1.75
Feeds — Trimmer.................................... 1.25 1.50
Log Deck.................................................. 1.75 1.75
Log Hauls — Incline, Well Type.............. 1.75 1.75
Log Turning Devices................................ 1.75 1.75
Planer Feed.............................................. 1.25 1.50
Planer Tilting Hoists................................ 1.50 1.50
Rolls–Live–Off Bearing–Roll Cases......... 1.75 1.75
Sorting Table, Tipple Hoist....................... 1.25 1.50
Transfers — Chain & Craneway.............. 1.50 1.75
Tray Drives............................................... 1.25 1.50
Veneer Lathe Drives...................................Refer to Factory
OIL INDUSTRY
Chillers.................................................... 1.25 1.50
Oil Well Pumping.......................................Refer to Factory
Paraffin Filter Press.................................. 1.25 1.50
Rotary Kilns............................................. 1.25 1.50
PAPER MILLS ➂
Agitator (Mixer)........................................ –
1.50
Agitator for Pure Liquids.......................... –
1.25
Barking Drums, Barkers — Mech............ –
2.00
Beater....................................................... –
1.50
Breaker Stack........................................... –
1.25
➃ Calender.............................................. –
1.25
Chipper.................................................... –
2.00
Chip Feeder.............................................. –
1.50
1.25
Coating Rolls........................................... –
Conveyors —
1.25
Chip, Bark, Chemical........................ –
Log (incl. Slab)................................. –
2.00
Couch Rolls............................................. –
1.25
Cutter....................................................... –
2.00
Cylinder Molds........................................ –
1.25
➃ Dryers —
1.25
Paper Mach. & Conveyor Type........ –
Industry
Service
3 to Over
10 10
Hour Hour
Embosser................................................
–
1.25
Extruder..................................................
–
1.50
Fourdrinier Rolls — Lumpbreaker, Wire
Turning, Dandy & Return Rolls..............
–
1.25
Jordan.....................................................
–
1.50
–
1.50
Kiln Drive................................................
Mt. Hope & Paper Rolls..........................
–
1.25
–
1.50
Platter.....................................................
Presses (Felt & Suction).........................
–
1.25
Pulper (Continuous)...............................
–
2.00
Repulper (Heavy Shock)..........................
–
2.00
Reel (Surface Type).................................
–
1.25
Screens...................................................
Chip & Rotary..................................
–
1.50
Vibrating..........................................
–
2.00
Size Press...............................................
–
1.25
Super Calenders ➄.................................
–
1.25
Thickener & Washer
AC Motor.........................................
–
1.50
–
1.25
DC Motor........................................
–
1.50
Vacuum Pumps.......................................
Wind & Unwind Stand............................
–
1.25
–
1.25
Winders (Surface Type)...........................
➃ Yankee Dryers ...................................
–
1.25
PLASTIC INDUSTRY
Batch Drop Mill, 2 smooth rolls.............. 1.25 1.25
Calenders................................................ 1.50 1.50
Compounding Mills................................ 1.25 1.25
Continuous Feed, Holding & Blend Mill. 1.25 1.25
Extruders................................................. 1.50 1.50
Variable Speed Drive........................ 1.50 1.50
Fixed Speed Drive............................ 1.75 1.75
Intensive Internal Mixers
Batch Mixers.................................... 1.75 1.75
Continuous Mixers.......................... 1.50 1.50
RUBBER INDUSTRY
Batch Drop Mill, 2 smooth rolls.............. 1.50 1.50
Calenders................................................ 1.50 1.50
Cracker, 2 corrugated rolls...................... 2.00 2.00
Cracker Warmer — 2 roll,
1 corrugated roll.................................... 1.75 1.75
Extruders
Continuous Screw Operation........... 1.75 1.75
Intermittent Screw Operation........... 1.75 1.75
Holding, Feed & Blend Mill–2 Roll......... 1.25 1.25
Intensive Internal Mixers
Batch Mixers.................................... 1.75 1.75
Continuous Mixers.......................... 1.50 1.50
Mixing Mill — 2 smooth rolls
(if corrugated rolls are used, use
Cracker Warmer service factors)............ 1.50 1.50
Refiner — 2 roll...................................... 1.50 1.50
SEWAGE DISPOSAL
Bar Screens............................................. 1.25 1.25
Chemical Feeders.................................... 1.25 1.25
Collectors............................................... 1.25 1.25
Dewatering Screens................................ 1.50 1.50
Scum Breakers........................................ 1.50 1.50
Slow or Rapid Mixers.............................. 1.50 1.50
Thickeners............................................... 1.50 1.50
Vacuum Filters........................................ 1.50 1.50
SUGAR INDUSTRY
Cane Knives, Crushers............................
–
1.75
Mills (low-speed end)............................. 1.75 1.75
TEXTILE INDUSTRY
Batchers, Calenders................................ 1.25 1.50
Card Machines........................................ 1.25 1.50
Dry Cans, Dryers.................................... 1.25 1.50
Dyeing Machinery................................... 1.25 1.50
Knitting Machinery................................... Refer to Factory
Looms, Mangles, Nappers, Pads............. 1.25 1.50
Range Drives............................................ Refer to Factory
Slashers, Soapers, Spinners, Tenter
Frames, Washers, Winders.................... 1.25 1.50
WINDLASS............................................ Refer to Factory
© Rexnord 2014
Service Factors
Table 4 — Service Factors Listed by Application
(For electric motor, steam turbine or hydraulic motor drives, recommendations are MINIMUM and normal conditions are assumed.)
Application
Service
3 to Over
10 10
Hour Hour
AGITATORS
Pure Liquids............................................ 1.00 ➁ 1.25 ➁
Liquids & Solids...................................... 1.25 ➁ 1.50 ➁
Liquids — Variable Density..................... 1.25 ➁ 1.50 ➁
APRON CONVEYORS
Uniformly-Loaded or Fed......................... 1.25 1.50
Heavy-Duty.............................................. 1.25 1.50
APRON FEEDERS................................. 1.25 1.50
ASSEMBLY CONVEYORS
Heavy-Duty.............................................. 1.25 1.50
BALL MILLS......................................... See Mills, Rotary
BARGE HAUL PULLERS...................... 1.75 2.00
BARKING
Drums (Coupling-Connected).................. –
2.00
2.00
Mechanical............................................... –
BAR SCREENS (Sewage)................... 1.25 1.25
BATCHERS (Textile)............................ 1.25 1.50
BELT CONVEYORS
Heavy-Duty.............................................. 1.25 1.50
BELT FEEDERS..................................... 1.25 1.50
BENDING ROLLS (Machine).............. 1.25 1.50
BLOWERS
Centrifugal............................................... 1.25 1.25
Lobe......................................................... 1.25 1.50
Vane......................................................... 1.25 1.25
BOTTLING MACHINERY...................... 1.00 1.25
BREWING............................................... See Table 3
BRICK PRESS (Clay Working)........... 1.75 2.00
BRIQUETTE MACHINES
(Clay Working)..................................... 1.75 2.00
BUCKET
Conveyors Uniform.................................. 1.25 1.50
Conveyors Heavy-Duty............................ 1.25 1.50
Elevators Continuous............................... 1.25 1.50
Elevators Uniform.................................... 1.25 1.50
Elevators Heavy-Duty............................... 1.25 1.50
CALENDERS
Rubber and Plastic.................................... See Table 3
Textile....................................................... 1.25 1.50
1.75
CANE KNIVES........................................ –
CAN FILLING MACHINES.................... 1.00 1.25
CARD MACHINES (Textile)................. 1.25 1.50
CAR DUMPERS..................................... 1.75 2.00
CAR PULLERS...................................... 1.25 1.50
CEMENT KILNS.................................... See Mills, Rotary
CENTRIFUGAL
Blowers, Compressors, Discharge
Elevators, Fans or Pumps................ 1.25 1.25
CHAIN CONVEYORS
Heavy-Duty.............................................. 1.25 1.50
CHEMICAL FEEDERS (Sewage)........ 1.25 1.25
CLARIFIERS.......................................... 1.00 1.25
CLASSIFIERS........................................ 1.25 1.50
CLAY WORKING.................................... See Table 3
COLLECTORS (Sewage)..................... 1.25 1.25
COMPRESSORS
Centrifugal............................................... 1.25 1.25
Lobe......................................................... 1.25 1.50
Reciprocating
Multi-Cylinder.................................. 1.50 1.75
Single-Cylinder................................ 1.75 2.00
CONCRETE MIXERS
Continuous.............................................. 1.25 ➁ 1.50 ➁
Intermittent............................................... 1.25 ➁ 1.50 ➁
Application
➀ CONVEYORS
Service
3 to Over
10 10
Hour Hour
— UniformlyLoaded or Fed
Apron, Bucket................................... 1.25 1.50
Assembly, Belt, Chain, Flight, Oven,
Screw.............................................. 1.25 1.25
➀ CONVEYORS — Heavy-Duty,
Not Uniformly Fed
Apron, Assembly, Belt, Bucket,
Chain, Flight, Oven, Screw.............. 1.25 1.50
CONVEYORS — Severe Duty
Live Roll................................................... Refer to Factory
Reciprocating Shaker............................... 1.75 2.00
COOKERS (Brewing & Distilling),
(Food)..................................................... 1.25 1.25
COOLING TOWER FANS....................... Refer to Factory
➀ CRANES
Dry Dock Cranes, Main Hoist,
Bridge and Trolley Travel........................ Refer to Factory
CRUSHERS
Ore or Stone............................................. 1.75 2.00
Sugar....................................................... –
1.75
DEWATERING SCREENS (Sewage).. 1.50 1.50
DISC FEEDERS..................................... 1.00 1.25
DISTILLING............................................ See Table 3
DOUBLE-ACTING PUMPS
2 or more Cylinders................................. 1.25 1.50
Single-Cylinder..........................................Refer to Factory
DOUGH MIXER (Food)........................ 1.25 1.50
DRAW BENCH (Metal Mills)
Carriage & Main Drive............................. 1.25 1.50
DREDGES............................................... See Table 3
DRY DOCK CRANES............................. Refer to Factory
DRYERS & COOLERS (Mills,
Rotary)................................................... –
1.50
DYEING MACHINERY (Textile).......... 1.25 1.50
ELEVATORS
Bucket-Uniform Load............................... 1.25 1.50
Bucket-Heavy-Duty.................................. 1.25 1.50
Bucket-Continuous.................................. 1.25 1.50
Centrifugal Discharge............................... 1.25 1.25
➀ Escalators ........................................... Not Approved
➀ Freight ................................................ Not Approved
➀ Gravity Discharge................................. 1.00 1.25
➀ ➀ Man Lifts, Passenger....................... Not Approved
EXTRUDERS (Plastic & Rubber)........ See Table 3
FANS
Centrifugal............................................... 1.25 1.25
Cooling Towers........................................ Refer to Factory
Forced Draft............................................. –
1.25
Induced Draft........................................... 1.50 1.50
Large (Mine, etc.)..................................... 1.50 1.50
Large lndustrial........................................ 1.50 1.50
Light (Small Diameter)............................. 1.00 1.25
FEEDERS
Apron, Belt............................................... 1.25 1.50
Disc......................................................... 1.00 1.25
Reciprocating........................................... 1.75 2.00
Screw....................................................... 1.25 1.50
FLIGHT CONVEYORS
Uniform.................................................... 1.25 1.25
Heavy....................................................... 1.25 1.50
FOOD INDUSTRY.................................. See Table 3
GENERATORS (Not Welding)............ 1.00 1.25
GRAVITY DISCHARGE ELEVATORS.. 1.00 1.25
HAMMER MILLS.................................. 1.75 2.00
Application
Service
3 to Over
10 10
Hour Hour
➀ HOISTS
Heavy-Duty.............................................. 1.75 2.00
Medium Duty........................................... 1.25 1.50
Skip Hoist................................................ 1.25 1.50
INDUCED DRAFT FANS....................... 1.50 1.50
KILNS.................................................... See Mills, Rotary
LAUNDRY WASHERS.......................... 1.50 2.00
LAUNDRY TUMBLERS........................ 1.25 1.50
LINE SHAFTS
Driving Processing Equipment................. 1.25 1.50
Other Line Shafts, Light........................... 1.00 1.25
LIVE ROLL CONVEYORS...................... Refer to Factory
LOBE BLOWERS OR
COMPRESSORS................................... 1.25 1.50
LOG HAULS (Lumber).........................
Incline-Well Type..................................... 1.75 1.75
LOOMS (Textile)................................... 1.25 1.50
LUMBER INDUSTRY............................ See Table 3
MACHINE TOOLS
Auxiliary Drives........................................ 1.00 1.25
Bending Rolls........................................... 1.25 1.50
Main Drives.............................................. 1.25 1.50
Notching Press (Belted)............................ Refer to Factory
Plate Planers............................................ 1.75 2.00
Punch Press (Geared).............................. 1.75 2.00
Tapping Machines.................................... 1.75 2.00
MANGLE (Textile)................................ 1.25 1.50
MASH TUBS (Brewing & Distilling). 1.25 1.25
MEAT GRINDERS (Food).................... 1.25 1.50
METAL MILLS
Draw Bench Carriages & Main Drives...... 1.25 1.50
Pinch, Dryer & Scrubber Rolls,
Reversing................................................ Refer to Factory
Slitters..................................................... 1.25 1.50
Table Conveyors, Non-Reversing
Group Drives.......................................... 1.50 1.50
Non-Reversing Individual Drives...... 2.00 2.00
Reversing..........................................
Wire Drawing & Flattening Machines....... 1.25 1.50
Wire Winding Machines........................... 1.50 1.50
MILLS, ROTARY
Ball and Rod Mills
with Spur Ring Gear......................... –
2.00
1.50
with Helical Ring Gear...................... –
Direct-Connected............................. –
2.00
Cement Kilns, Dryers & Coolers, Pebble,
1.50
Plain & Wedge Bar Mills........................ –
Tumbling Barrels...................................... 1.75 2.00
MIXER (Also see Agitators)
Concrete, Cont. & lnt............................... 1.25 ➁ 1.50 ➁
Constant Density...................................... 1.25 ➁ 1.50 ➁
Variable Density....................................... 1.25 ➁ 1.50 ➁
NAPPERS (Textile)............................... 1.25 1.50
OIL INDUSTRY...................................... See Table 3
ORE CRUSHERS................................... 1.75 2.00
OVEN CONVEYORS
Uniform.................................................... 1.25 1.25
Heavy-Duty.............................................. 1.25 1.50
PAPER MILLS....................................... See Table 3
➀ PASSENGER ELEVATORS .............. Not Approved
PEBBLE MILLS..................................... –
1.50
PLATE PLANERS.................................. 1.75 2.00
PRINTING PRESSES............................ Refer to Factory
PROPORTIONING PUMPS.................. 1.25 1.50
PUG MILLS (Clay)............................... 1.25 1.50
PULLERS (Barge Haul)....................... 1.75 2.00
Application
Service
3 to Over
10 10
Hour Hour
PUMPS
Centrifugal............................................... 1.25 1.25
Proportioning........................................... 1.25 1.50
Reciprocating
Single-Act., 3 or more Cyl................ 1.25 1.50
Double-Act., 2 or more Cyl............... 1.25 1.50
Single-Act., 1 or 2 Cyl...................... Refer to Factory
Double-Acting, 1 Cyl........................ Refer to Factory
Rotary: Gear, Lobe, Vane.......................... 1.00 1.25
PUNCH PRESSES
(Gear-Driven)....................................... 1.75 2.00
RECIPROCATING
Conveyors & Feeders............................... 1.75 2.00
RECIPROCATING COMPRESSORS
Multi-Cylinder......................................... 1.50 1.75
Single-Cylinder........................................ 1.75 2.00
ROD MILLS.......................................... See Mills, Rotary
ROTARY
Pumps..................................................... 1.00 1.25
Screens (Sand or Gravel)......................... 1.25 1.50
RUBBER & PLASTICS INDUSTRIES. See Table 3
SAND MULLERS................................... 1.25 1.50
SCREENS
Air Washing............................................. 1.00 1.25
Rotary — Sand or Gravel........................ 1.25 1.50
Traveling Water Intake.............................. 1.00 1.25
SCREW CONVEYORS..........................
Uniform.................................................... 1.25 1.25
Heavy-Duty or Feeder............................... 1.25 1.50
SCUM BREAKERS (Sewage)............. 1.50 1.50
SEWAGE DISPOSAL............................ See Table 3
SHAKER CONVEYORS......................... 1.75 2.00
SHEETERS (Rubber)............................ –
1.50
SINGLE-ACTING PUMP
I or 2 Cylinders........................................ Refer to Factory
3 or more Cylinders................................. 1.25 1.50
➀ SKI TOWS & LIFTS........................... Not Approved
➀ SKIP HOIST....................................... 1.25
1.50
SLAB PUSHERS.................................... 1.50 1.50
SLITTERS (Metal)................................ 1.25 1.50
SLUDGE COLLECTORS (Sewage)..... 1.25 1.25
SOAPERS (Textile)............................... 1.25 1.50
SPINNERS (Textile)............................. 1.25 1.50
STEERING GEARS................................. Refer to Factory
STOKERS............................................... 1.00 1.25
STONE CRUSHERS.............................. 1.75 2.00
SUGAR INDUSTRY................................ See Table 3
TABLE CONVEYORS
(Non-Reversing)
Group Drives............................................ 1.50 1.50
Individual Drives...................................... 2.00 2.00
Reversing................................................. Refer to Factory
TENTER FRAMES (Textile)................. 1.25 1.50
TEXTILE INDUSTRY............................. See Table 3
THICKENERS (Sewage)...................... 1.50 1.50
TUMBLING BARRELS.......................... 1.75 2.00
VACUUM FILTERS (Sewage)............. 1.50 1.50
VANE BLOWERS................................... 1.25 1.50
WINCHES (Dredges)........................... 1.25 1.50
WINDERS (Textile).............................. 1.25 1.50
WINDLASS............................................. Refer to Factory
WIRE
Drawing Machines................................... 1.25 1.50
Winding Machines................................... 1.50 1.50
➀ Selection of Rexnord products for applications whose primary purpose is the transportation of people is not approved. This includes such applications as freight or passenger
elevators, escalators, man lifts, work lift platforms and ski tows and ski lifts. If the primary purpose of the application is material conveyance and occasionally people are transported,
the Factory warranty may remain in effect provided the design load conditions are not exceeded and certification to the appropriate safety codes and load conditions has been obtained
by the system designer or end user from the appropriate enforcement authorities.
➁ Contact Rexnord for proper selection of a Falk RAM mixer drive.
© Rexnord 2014
(311-110) 9
Load Classification Factors
Table 6 — Load Classification Factors Listed by Industry
Table 5 — Class/Service Factor Conversion Table
Class
Service Factor
I
II
III
1.00
1.41
2.00
UltraMax drives may be selected by Service Factor or Load Classification. Selections may
vary, so compare Load Classification against Service Factor on page 8 or page 9.
Selecting the lowest Service Factor from Table 5 will result in the most economical
selection.
A drive is rated to a specific application by the use of Load Classification Factors. Each
application has its own conditions and operating requirements. These have been analyzed
and cataloged. Numerical values, based on field experience, have been assigned to these
classifications for intermittent service of 3 to 10 hours per day and for service over 10
hours per day and also for the type of prime mover, electric motor or engine. Values for
most applications are listed by application on page 11, Table 7 and by industry at right,
Table 6. Refer unlisted applications to the Factory.
Since most industrial applications are electric-motor-driven, Load Classification Factors
are based on the use of electric motors. These factors can be easily converted to enginedrive factors as outlined in Table 2, page 8.
Load Classification Factors are based on the assumption that the system is free of dynamic
vibrations, as explained in the Basic Information section, and that maximum momentary or
starting loads do not exceed 200% of the rated load. Refer applications subject to repetitive
shocks and applications where exceedingly high-energy load must be absorbed, as when
stalling, to the Factory for special consideration.
(For electric motor, steam turbine or hydraulic motor drives, recommendations are
MINIMUM and normal conditions are assumed.)
Industry
Service
3 to Over
10 10
Hour Hour
BREWING & DISTILLING
Bottling Machinery..................................
I
II
II
Brew Kettles, Continuous Duty................ –
Can Filling Machines..............................
I
II
Cookers — Continuous Duty.................. –
II
Mash Tubs — Continuous Duty............. –
II
Scale Hoppers — Frequent Starts..........
II
II
CLAY WORKING INDUSTRY
Brick Press.............................................. III
III
III
Briquette Machines................................. III
Clay Working Machinery.........................
II
II
II
II
Pug Mills................................................
DISTILLING DREDGES....................... See Brewing
Cable Reels.............................................
II
–
Conveyors...............................................
II
II
Cutter Head Drives.................................. III
III
III
Jig Drives................................................ III
Maneuvering Winches............................. III
–
III
Pumps.................................................... III
Screen Drives.......................................... III
III
Stackers..................................................
II
II
Utility Winches........................................
II
–
FOOD INDUSTRY
II
II
Beet Slicers.............................................
Bottling, Can Filling Machine..................
I
II
Cereal Cookers........................................
I
II
Dough Mixers, Meat Grinders.................
II
II
LUMBER INDUSTRY
Barkers — Spindle Feed.........................
II
III
Barkers — Main Drive............................ III
III
Carriage Drive......................................... Refer to Factory
II
III
Chains — Floor......................................
Chains — Green.....................................
II
III
Conveyors
Burner.............................................
II
III
Main or Heavy-Duty........................
II
III
Main Log......................................... III
III
Re-Saw Merry-Go-Round................
II
III
III
Slab................................................. III
Transfer............................................
II
III
II
III
Cut-Off Saws — Chain & Drag..............
Debarking Drums.................................... III
III
II
III
Feeds — Edger.......................................
Feeds — Gang........................................ III
III
Feeds — Trimmer...................................
II
III
III
Log Deck................................................. III
Log Hauls — Incline, Well Type............. III
III
III
Log Turning Devices............................... III
Planer Feed.............................................
II
III
Planer Tilting Hoists...............................
II
III
Rolls — Live — Off Bearing — Roll
III
III
Cases....................................................
Sorting Table, Tipple Hoist......................
II
III
Transfers — Chain & Craneway.............
II
III
Tray Drives..............................................
II
III
OIL INDUSTRY
Chillers...................................................
II
II
Oil Well Pumping.................................... Refer to Factory
II
II
Paraffin Filter Press.................................
Rotary Kilns............................................
II
II
Service
3 to Over
10 10
Hour Hour
Industry
PAPER MILLS
Agitator (Mixer).......................................
Barker—Auxiliaries—Hyd......................
Barker, Mechanical..................................
Barking Drum..........................................
Beater & Pulper.......................................
Bleacher..................................................
➀ Calenders...........................................
➀ Calendars — Super...........................
Converting Mach. — Except
Cutters-Platers........................................
Conveyors...............................................
Couch.....................................................
Cutters, Platers.......................................
Cylinders................................................
➀ Dryers................................................
Felt Stretchers.........................................
Felt Whippers..........................................
Jordans...................................................
Log Haul.................................................
Presses...................................................
Pulper (Continuous)...............................
Repulper (Heavy Shock)..........................
Stock Chests...........................................
Suction Rolls...........................................
Washers & Thickeners.............................
Winders..................................................
RUBBER INDUSTRY
Mixer......................................................
Rubber Calender.....................................
Rubber Mill (2 or more)..........................
Sheeter....................................................
Tire Building Machines...........................
Tire, Tube Press Openers........................
Tubers & Strainers..................................
SEWAGE DISPOSAL
Aerators..................................................
Bar Screens.............................................
Chemical Feeders....................................
Collectors...............................................
Dewatering Screens................................
Grit Collectors.........................................
Scum Breakers........................................
Slow or Rapid Mixers..............................
Sludge Collectors....................................
Thickeners...............................................
Vacuum Filters........................................
TEXTILE INDUSTRY
Batchers, Calenders................................
Card Machines........................................
Cloth Finishing Machines, Calenders,
Dryers, Pads, Tenters, Washers.............
Dry Cans.................................................
Dyeing Machinery...................................
Knitting Machinery..................................
Looms, Mangles, Nappers......................
Range Drives...........................................
Soapers, Spinners...................................
Tenter Frames..........................................
Winders..................................................
Yarn Preparatory Machinery,
(Cards, Spinners, Slashers)...................
II
–
–
–
–
–
–
–
II
III
III
III
II
II
II
II
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
II
II
II
III
II
II
II
III
II
III
II
III
III
II
II
II
II
III
III
II
II
II
II
II
II
Refer to Factory
Refer to Factory
II
II
Refer to Factory
II
II
II
II
II
II
II
II
II
II
II
II
II
II
II
II
II
II
II
II
II
II
II
II
II
II
II
II
II
II
Refer to Factory
II
II
Refer to Factory
II
II
II
II
II
II
II
II
➀ Anti-friction bearings only.
10 (311-110)
© Rexnord 2014
Table 7 — Load Classification Factors Listed by Application
(For electric motor, steam turbine or hydraulic motor drives, recommendations are MINIMUM and normal conditions are assumed.)
Application
Service
3 to Over
10 10
Hour Hour
AERATORS............................................ Refer to Factory
AGITATORS
Paper Mills............................................... II
II
Pure Liquids............................................ I ➁
II ➁
Liquids & Solids...................................... II ➁ II ➁
Liquids — Variable Density..................... II ➁ II ➁
APRON CONVEYORS
Uniformly-Loaded or Fed......................... II
II
Heavy-Duty.............................................. II
II
APRON FEEDERS................................. II
II
ASSEMBLY CONVEYORS
II
Heavy-Duty.............................................. II
II
BALL MILLS.......................................... III
III
BARGE HAUL PULLERS...................... III
III
BARKING
Drums...................................................... –
III
Hydraulic Auxiliaries................................ –
III
Mechanical............................................... –
III
BAR SCREENS (Sewage)................... II
II
II
BATCHERS (Textile)............................ II
BEATERS & PULPERS (Paper).......... –
II
BELT CONVEYORS
II
Heavy-Duty.............................................. II
II
BELT FEEDERS..................................... II
II
II
BENDING ROLLS (Machine).............. II
BLEACHERS (Paper)........................... –
II
BLOWERS
Centrifugal............................................... II
II
II
Lobe......................................................... II
Vane......................................................... II
II
BOTTLING MACHINERY......................
I
II
BREWING.............................................. See Table 6
BRICK PRESS (Clay Working)........... III
III
BRIQUETTE MACHINES
(Clay Working)..................................... III
III
BUCKET
Conveyors Uniform.................................. II
II
II
Conveyors Heavy-Duty............................ II
Elevators Continuous............................... II
II
II
Elevators Uniform.................................... II
Elevators Heavy-Duty............................... II
II
CALENDERS
Rubber..................................................... II
II
Textile....................................................... II
II
III
CANE KNIVES........................................ II
CAN FILLING MACHINES....................
I
II
CARD MACHINES (Textile)................. II
II
CAR DUMPERS..................................... III
–
–
CAR PULLERS...................................... II
CEMENT KILNS..................................... Refer to Factory
CENTRIFUGAL
Blowers, Compressors, Discharge
Elevators, Fans or Pumps....................... II
II
CHAIN CONVEYORS
II
Heavy-Duty.............................................. II
II
CHEMICAL FEEDERS (Sewage)........
I
II
CLARIFIERS..........................................
I
II
CLASSIFIERS........................................ II
II
CLAY WORKING................................... See Table 6
COLLECTORS (Sewage)..................... II
II
COMPRESSORS
Centrifugal............................................... II
II
Lobe......................................................... II
II
Reciprocating
Multi-Cylinder.................................. II
III
Single-Cylinder................................ III
III
CONCRETE MIXERS
Continuous.............................................. II ➁
II ➁
Intermittent............................................... II ➁
–
Application
Service
3 to Over
10 10
Hour Hour
CONVERTING MACHINES (Paper).... –
II
➀ CONVEYORS—Uniformly-Loaded
or Fed:
Apron, Assembly, Belt, Bucket, Chain,
II
Flight, Oven, Screw................................ II
➀ CONVEYORS—Heavy-Duty, Not
Uniformly Fed
Apron, Assembly, Belt, Bucket, Chain,
Flight, Oven, Screw................................ II
II
Live Roll (Package)................................... II
II
III
Reciprocating, Shaker.............................. III
COOKERS (Brewing & Distilling),
(Food)..................................................... II
II
COOLING TOWER FANS...................... Refer to Factory
COUCH (Paper).................................... –
II
➀ CRANES & HOISTS
Main Hoists
Heavy-Duty....................................... III
III
Medium Duty.................................... II
II
Reversing................................................. II
II
Skip Hoists.............................................. II
II
II
Trolley Drive............................................. II
Bridge Drive............................................. II
II
CRUSHERS
Ore or Stone............................................. III
III
III
CUTTERS (Paper)................................ –
CYLINDERS (Paper)............................ –
II
DEWATERING SCREENS (Sewage).. II
II
I
II
DISC FEEDERS.....................................
DISTILLING........................................... See Table 6
DOUBLE-ACTING PUMPS
2 or more Cylinders................................. II
II
Single Cylinder........................................ Refer to Factory
DOUGH MIXER (Food)........................ II
II
DRAW BENCH (Metal Mills)
III
Carriage & Main Drive............................. III
DREDGES.............................................. See Table 6
DRYERS & COOLERS
(Mills, Rotary)..................................... II
II
II
DYEING MACHINERY (Textile).......... II
ELEVATORS
Bucket-Uniform Load............................... II
II
Bucket-Heavy-Duty.................................. II
II
Bucket-Continuous.................................. II
II
Centrifugal Discharge............................... II
II
Escalators ............................................... Not Approved
Freight...................................................... Not Approved
Gravity Discharge
I
II
Man Lifts, Passenger................................ Not Approved
FANS
Centrifugal............................................... II
II
Cooling Towers........................................ Refer to Factory
Forced Draft............................................. II
II
II
Induced Draft........................................... II
Large (Mine, etc.)..................................... II
II
Large lndustrial........................................ II
II
Light (Small Diameter).............................
I
II
FEEDERS
Apron, Belt............................................... II
II
Disc.........................................................
I
II
Reciprocating........................................... III
III
Screw....................................................... II
II
FELT
Stretchers (Paper).................................... –
II
Whippers (Paper)..................................... –
III
FLIGHT CONVEYORS
Uniform.................................................... II
II
Heavy....................................................... II
II
FOOD INDUSTRY................................. See Table 6
FORMING MACHINES
(Metal Mills)......................................... III
III
GENERATORS (Not Welding)............
I
II
GRAVITY DISCHARGE ELEVATORS..
I
II
Application
Service
3 to Over
10 10
Hour Hour
GRIT COLLECTORS (Sewage)........... II
II
HAMMER MILLS.................................. III
III
INDUCED DRAFT FANS....................... II
II
KILNS (Mills, Rotary)......................... II
II
Cement.................................................... Refer to Factory
LAUNDRY WASHERS.......................... II
III
LAUNDRY TUMBLERS ....................... II
II
LINE SHAFTS
Heavy Shock Load.................................... III
III
Moderate Shock Load.............................. II
II
Uniform Load...........................................
I
II
LIVE ROLL CONVEYORS
Package.................................................... II
II
LOBE BLOWERS OR
II
COMPRESSORS................................... II
LOG HAULS (Paper & Lumber)......... III
III
LOOMS (Textile)................................... II
II
LUMBER INDUSTRY............................ See Table 6
MACHINE TOOLS
Auxiliary Drives........................................
I
II
Bending Rolls........................................... II
II
Main Drives.............................................. II
II
Notching Press (Belted)........................... Refer to Factory
III
Plate Planers............................................ III
Punch Press (Geared).............................. III
III
Tapping Machines.................................... III
III
MANGLE (Textile)................................ II
II
MASH TUBS (Brewing & Distilling). –
II
MEAT GRINDERS (Food).................... II
II
METAL MILLS
Draw Bench Carriages & Main Drives...... III
III
Forming Machines................................... III
III
Pinch, Dryer & Scrubber Rolls,
Reversing................................................ Refer to Factory
Slitters..................................................... II
II
Table Conveyors
Non-Reversing.................................. III
III
Reversing.......................................... Refer to Factory
Wire Drawing & Flattening Machines....... II
III
Wire Winding Machines........................... II
II
MILLS, ROTARY
Ball, Pebble, Rod...................................... III
III
Cement Kilns........................................... Refer to Factory
Coolers, Dryers, Kilns.............................. II
III
Tumbling Barrels ..................................... III
III
MIXER (Also see Agitators)
Concrete — Continuous.......................... II ➁ II ➁
Concrete — Intermittent.......................... II ➁
–
Constant Density...................................... II ➁ II ➁
Variable Density....................................... II ➁ II ➁
NAPPERS (Textile)............................... II
II
OIL INDUSTRY...................................... See Table 6
ORE CRUSHERS................................... III
III
OVEN CONVEYORS
Uniform.................................................... II
II
Heavy-Duty.............................................. II
II
PAPER MILLS....................................... See Table 6
PASSENGER ELEVATORS................... Not Approved
PEBBLE MILLS..................................... III
III
PLATE PLANERS.................................. III
III
PRESSES PAPER.................................. –
II
PROPORTIONING PUMPS.................. II
II
PUG MILLS (Clay)............................... II
II
PULLERS (Barge Haul)....................... III
III
PUMPS
Centrifugal............................................... II
II
Proportioning........................................... II
II
Reciprocating
Single-Act., 3 or more Cyl................ II
II
Double-Act., 2 or more Cyl............... II
II
Single Act., 1 or 2 Cyl....................... Refer to Factory
Rotary: Gear, Lobe, Vane..........................
I
II
Service
3 to Over
10 10
Hour Hour
Application
PUNCH PRESSES
(Gear Driven)........................................
RECIPROCATING
Conveyors & Feeders...............................
RECIPROCATING COMPRESSORS
Multi-Cylinder.........................................
Single Cylinder........................................
ROD MILLS...........................................
ROTARY
Pumps: Gear, Lobe, Vane.........................
Screens (Sand or Gravel).........................
RUBBER & PLASTICS INDUSTRIES.
SAND MULLERS...................................
SCREENS
Air Washing.............................................
Rotary — Sand or Gravel........................
Traveling Water Intake..............................
SCREW CONVEYORS
Uniform....................................................
Heavy-Duty or Feeder...............................
SCUM BREAKERS (Sewage).............
SEWAGE DISPOSAL............................
SHAKER CONVEYORS.........................
SHEETERS (Rubber)............................
SINGLE-ACTING PUMP
1 or 2 Cylinders.......................................
3 or more Cylinders.................................
SKI TOWS & LIFTS..............................
➀ SKIP HOIST.......................................
SLAB PUSHERS....................................
SLITTERS (Metal)................................
SLUDGE COLLECTORS (Sewage).....
SOAPERS (Textile)...............................
SPINNERS (Textile).............................
STEERING GEARS................................
STOCK CHESTS (Paper).....................
STOKERS...............................................
STONE CRUSHERS..............................
SUCTION ROLLS (Paper)...................
TABLE CONVEYORS
(Metal Mills)
Non-Reversing.........................................
Reversing.................................................
TENTER FRAMES (Textile).................
TEXTILE INDUSTRY.............................
THICKENERS (Sewage)......................
TUMBLING BARRELS..........................
VACUUM FILTERS (Sewage).............
VANE BLOWERS...................................
WINCHES (Dredges)...........................
WINDERS (Textile)
Paper........................................................
Textile.......................................................
WINDLASS............................................
WIRE
Drawing Machines...................................
Winding Machines...................................
III
III
III
III
II
III
III
III
III
III
I
II
II
II
See Table 6
Refer to Factory
I
II
I
II
II
II
II
II
II
II
II
II
See Table 6
III
III
II
II
Refer to Factory
II
II
Not Approved
II
II
II
II
II
II
I
II
II
II
II
II
II
II
–
II
I
II
III
III
–
II
III
III
Refer to Factory
II
II
See Table 6
II
II
III
III
II
II
II
II
II
–
–
II
II
II
Refer to Factory
II
II
III
II
➀ Selection of Rexnord products for applications whose primary purpose is the transportation of people is not approved. This includes such applications as freight or passenger
elevators, escalators, man lifts, work lift platforms and ski tows and ski lifts. If the primary purpose of the application is material conveyance and occasionally people are transported,
the Factory warranty may remain in effect provided the design load conditions are not exceeded and certification to the appropriate safety codes and load conditions has been obtained
by the system designer or end user from the appropriate enforcement authorities.
➁ Contact Rexnord for proper selection of a Falk RAM mixer drive.
© Rexnord 2014
(311-110) 11
How to Select/Quick Selection Method
Selection Information
Example
This catalog contains two methods of selection. The Quick Selection Method and the
Horsepower & Torque Ratings Table Method.
Application: Belt conveyor, heavy-duty, head shaft speed is 40 rpm, ambient temperature
100°F (38°C) at sea level.
Before proceeding, determine which selection procedure to use. Use the Quick Selection
Method if your application meets the following guidelines.
Duty Cycle: 16 hours per day.
• 1750 rpm input
• Standard ratios for double, triple or quadruple reductions
Output: 11.3" pitch diameter sprocket with a 2:1 chain drive to the headshaft. Sprocket
will be mounted 4.00" from drive seal cage.
• 80°F ambient at sea level (0 to 2500 ft.)
1. Service factor from page 9 is 1.50.
NOTE: If the above guidelines cannot be met, use the Horsepower & Torque Ratings
Table Method, page 32. Also, if you have an unusual application involving any of the
following conditions, refer to pages 6 and 7.
• Excessive Overloads
2. Motor horsepower is 50 hp.
• Reversing Service
• Brake-Equipped Applications
• Oversized Prime Movers
• Multi-Speed or Variable Speed Applications
• Excessive Ambient Temperatures
Driver: 50 hp electric motor, 1750 rpm.
3. The head shaft speed must be multiplied by the chain drive ratio to obtain the drive
output rpm (40 rpm x 2 = 80 rpm).
4. From page 25, in the 50 hp Quick Selection Table, the correct selection is a Size
2070F2, 20.54:1 exact ratio drive.
50 HP/1750 RPM/326T Motor
Approx.
Drive
L.S. Shaft Size &
RPM
Reduction
Exact
Ratio
L.S. Shaft Minimum
HP
Service Minimum
OHL
L.S. Shaft
Cooling
Rating Factor Required Capacity
Sprocket
(lb) ➀ Pitch Dia. ➀
• Thermal Rating Application Factors
100
2060F_2
17.19
69.8
1.40
None
6500
9.69
• Excessive Overhung Loads or Thrust Loads
100
2070F_2
17.33
102
2.04
None
8500
7.41
• Product Modifications
100
2080F_2
17.34
149
2.98
None
7480
8.42
84
2060F_2
21.13
59.3
1.19
None
6500
11.54
• Non-Standard Motors or Prime Movers
• Non-Standard Motor Bracket Applications
➞ 84
2070F_2
20.54
84.8
1.70
None
8500
8.82
• Non-Horizontal Mounting Positions
84
2080F_2
20.98
117
2.34
None
10200
7.35
How to Select by Quick Selection
68
2070F_2
25.12
68.0
1.36
None
8500
10.90
1. Determine Service Factor or Load Classification Factor — See pages 8 and 9
or pages 10 and 11.
68
2080F_2
25.17
96.7
1.93
None
11000
8.42
56
2070F_2
31.08
53.1
1.06
None
8500
13.24
2. Determine Motor Horsepower.
3. Determine Drive Output Speed.
4. Select Drive Size — Use Quick Selection Tables, pages 15-31; find the table for
your motor horsepower and locate the correct drive size opposite the nearest output
rpm and the required service factor determined in Steps 1 thru 3.
5. Select Drive Configuration — Type FC or FZ, see pages 58-61.
6. Check Minimum Cooling Required — If a required cooling accessory is not
acceptable, check a larger size drive.
7. Check Overhung Load — Minimum allowable sprocket pitch diameters are provided
for the L.S. Shaft based on the sprocket being mounted one shaft diameter from
the seal cage and a service factor of unity. Where overhung load is proportional to
torque; e.g., pinion, sprocket or sheave applications, adjustment to the published
values must be made based on the required service factor. The pitch diameter of the
sprocket being used must not be less than the value (Pd) shown. If the sprocket is
located at a distance other than one shaft diameter from the seal cage, refer to the
instructions on page 48.
5. From page 61, the desired configuration is a Type FZ.
6. No cooling accessory is required.
7. Overhung load check — from the 50 hp Quick Selection Table, the minimum
sprocket diameter is 8.82". This value is based on the sprocket being mounted one
shaft diameter from the seal cage. Since the sprocket will be mounted 4.00" from the
seal cage, refer to the Load Location Factor Table on page 49. Opposite the 4.00"
and Size 2070, find the Load Location Factor for this distance. Multiply the allowable
pitch diameter by the load location factor (8.82 x 1.13) to determine the actual
minimum pitch diameter. The 11.3" sprocket diameter in the example exceeds the
actual minimum allowable (9.97") and is therefore acceptable.
8. Check external thrust load capacity on page 55. For this example there is no
external thrust.
9. Check dimensions on pages 58-61.
10. Place the order. How to Order information on page 14.
8. Check External Thrust Load — Thrust loads are provided on page 55. If thrust
and overhung loads are applied simultaneously, or if loads exceed these capacities,
consult the Factory.
9. Check Drive Dimensions — pages 58-61.
10. Place the Order — How to Order information on page 14.
12 (311-110)
© Rexnord 2014
Drive Nomenclature
UltraMax drives in this catalog, product nameplates and customer orders are identified through the following nomenclature. Use the appropriate designations when placing an order or
inquiring with a Rexnord representative.
TYPE
2
050
F
Z
K
4
A
S
–
105.9
A
143
2000 Series
Size
Basic Drive
Drive Arrangement
Frame Size
Motor Mounting
Ratio
Seal Option
Variance Symbol
Model
Additonal Product Description
No. of Reductions
Size
Seal Option
2040 thru 2050 — Cast iron housings
- — Standard Nitrile seals
2060 thru 2130 — Fabricated steel housings
V —Viton® seals
Drive Arrangement
Ratio
C — Concentric Gear Drive
Exact ratio to four digits.
Z — Concentric Gear Drive w/ motor bracket & input coupling
M — Concentric Gear Drive w/ motor plate & input coupling
Motor Mounting
A — Concentric Gear Drive w/ motor adapter
A — NEMA Foot-Mounted motor, T Frame
D — Concentric Gear Drive w/ motor mount
B — NEMA Foot-Mounted motor, TS Frame
C — NEMA “C” Face motor, T Frame
Additional Product Description
E — NEMA “C” Face motor, TS Frame
K — Torque rated basic drive
G — IEC Foot-Mounted motor, Short (S) Frame
H — IEC Foot-Mounted motor, Medium (M) Frame
Reductions
J — IEC Foot-Mounted motor, Long (L) Frame
2, 3, 4, etc.
L — IEC B-5 (“D” flange) motor
S — Special Motor/Motor Mounting; e.g., DC motor, Fluid Coupling
Model
A, B, C, etc.
Variance Symbol
Frame Size
NEMA 042-500 or IEC 055-1080 (Note: 108 used for IEC 1080 frame). NEMA motor
frame is Falk standard.
A — Drive w/ backstop
B — Drive w/ shaft fan
C — Drive w/ backstop & shaft fan
D — Drive w/ electric fan
E — Drive w/ electric fan & backstop
F — Drive w/ cooling tubes
G — Drive w/ cooling tubes & backstop
H — Drive w/ pump & cooler (air)
J — Drive w/ pump & cooler (air) & backstop
K — Drive w/ pump & cooler (water)
L — Drive w/ pump & cooler (water) & backstop
S — Modified or special drive
© Rexnord 2014
(311-110) 13
Drive Selection
How to Order UltraMax Drives
The following information is required to quote or ship UltraMax drives to your
requirements.
Drive
Auxiliary Equipment
A. Motors — If Rexnord is to furnish, specify complete information, e.g. current
characteristics, enclosure, modifications, accessories, etc.
A. Size and Type from selection tables.
B. Couplings — Specify size, type, driver or driven hub bore and keyway size.
B. Ratio.
C. Backstop — Specify direction of rotation of the low-speed shaft (clockwise or
counterclockwise) when looking toward the drive from the low-speed end.
C. Input and/or output speed (rpm).
D. Horsepower — Motor or brake.
E. Service Factor for application.
D. Motor Mount — Specify complete motor information, required belt centers and
mounting arrangement.
F. Mounting position — Horizontal. See page 7 for tilt limits.
E. Motor Plate — Specify complete motor, auxiliary equipment and coupling
information.
G. Auxiliary equipment — Bed plate, couplings, backstop, etc.
F. Electric Fan Position.
H. Thrust and overhung loads — Specify type and amount.
G. Cooling Tube Water Inlet & Outlet Position.
Motor — Prime Mover
A. Type — Motor or engine.
B. Horsepower.
C. Speed — rpm.
D. Frame size — Dimension prints if Rexnord is to furnish mounting surface and/or
mount the equipment.
H. Coupling Guards — Furnish description of couplings or other equipment to be
guarded and all dimensions A-G below.
I. Motor Bracket — Specify complete motor information including motor weight,
auxiliary equipment and coupling information.
A
B
E. Motor — Weight, driver characteristics; e.g., enclosure, modifications and
accessories, altitude, brake, etc.
F. Furnished by: Rexnord…Purchaser…
G. Fitted by: Rexnord…Purchaser…
C
G
D
E
F
Driven Machine
A. Required horsepower or torque.
B. Rpm.
B & E...Max Cplg Dim
D & F...Exposed Shaft
C. Application description — Belt conveyor, agitator, etc.
D. Service — Duty cycle, hours per day, reversals per minute if reversing.
E. Ambient temperature and operating conditions — Outdoor, taconite dust, etc.
14 (311-110)
© Rexnord 2014
Quick Selection Tables
1 HP/1750 RPM/143T Motor ➀
Approx. L.S.
Shaft RPM
Drive Size &
Reduction
Exact Ratio
HP Rating
Service Factor
Minimum
Cooling
Required
L.S. Shaft OHL
Capacity
(lb) ➁
Minimum L.S.
Shaft Sprocket
Pitch Dia (in) ➁
11.0
2040F_3
159.4
2.50
2.50
None
3400
3.37
6.0
2050F_4
286.1
2.49
2.49
None
5250
4.00
5.0
2050F_4
343.3
2.08
2.08
None
5250
4.80
4.0
2050F_4
417.1
1.71
1.71
None
5250
6.00
4.0
2060F_4
449.4
2.80
2.80
None
6500
4.85
3.2
2050F_4
508.3
1.40
1.40
None
5250
7.50
3.2
2060F_4
543.0
2.32
2.32
None
6500
6.06
2.7
2060F_4
649.5
1.94
1.94
None
6500
7.18
2.7
2070F_4
641.4
2.81
2.81
None
8500
5.49
2.2
2060F_4
795.9
1.58
1.58
None
6500
8.81
2.2
2070F_4
785.9
2.29
2.29
None
8500
6.74
2.2
2080F_4
772.8
2.86
2.86
None
11000
5.21
1.8
2060F_4
965.5
1.30
1.30
None
6500
10.77
1.8
2070F_4
961.2
1.86
1.86
None
8500
8.24
1.8
2080F_4
927.2
2.25
2.25
None
11000
6.36
Exact Ratio
HP Rating
Service Factor
Minimum
Cooling
Required
L.S. Shaft OHL
Capacity
(lb) ➁
Minimum L.S.
Shaft Sprocket
Pitch Dia (in) ➁
Motors are available from Rexnord
or Rexnord distributors.
1 HP/143T Motor
Energy Efficient Motor
Falk Part No. 2918104 TEFC,
1750 rpm 208-230/460 Volts,
3 Phase, 60 Hz, NEMA B,
1.15 Service Factor
Premium Efficiency Motor
1750 rpm 230/460 Volts, 3 Phase,
60 Hz, NEMA B, 1.15 Service
Factor
Motors meeting other
specifications are available upon
request.
1.5 HP/1750 RPM/145T Motor ➀
Approx. L.S.
Shaft RPM
Drive Size &
Reduction
16.5
2040F_3
105.0
3.80
2.53
None
3400
3.37
13.5
2040F_3
125.0
3.16
2.11
None
3400
4.12
11.0
2040F_3
159.4
2.50
1.67
None
3400
5.05
9.0
2050F_4
187.5
3.53
2.35
None
5250
4.00
7.5
2050F_4
231.5
3.08
2.05
None
5250
4.80
6.0
2050F_4
286.1
2.49
1.66
None
5250
6.00
6.0
2060F_4
296.3
4.24
2.83
None
6500
4.85
5.0
2050F_4
343.3
2.08
1.39
None
5250
7.20
5.0
2060F_4
363.2
3.46
2.31
None
6500
5.82
4.0
2050F_4
417.1
1.71
1.14
None
5250
9.00
4.0
2060F_4
449.4
2.80
1.87
None
6500
7.27
4.0
2070F_4
443.8
4.06
2.71
None
8500
5.56
3.2
2060F_4
543.0
2.32
1.55
None
6500
9.09
3.2
2070F_4
542.7
3.30
2.20
None
8500
6.95
3.2
2080F_4
523.5
3.98
2.65
None
11000
5.37
2.7
2060F_4
649.5
1.94
1.29
None
6500
10.77
2.7
2070F_4
641.4
2.81
1.87
None
8500
8.24
2.7
2080F_4
638.7
4.14
2.76
None
11000
6.36
2.2
2060F_4
795.9
1.58
1.05
None
6500
13.22
2.2
2070F_4
785.9
2.29
1.53
None
8500
10.11
2.2
2080F_4
772.8
2.86
1.91
None
11000
7.81
1.8
2070F_4
961.2
1.86
1.24
None
8500
12.35
1.8
2080F_4
927.2
2.25
1.50
None
11000
9.55
1.8
2090F_4
945.2
4.44
2.96
None
14000
7.50
1.5 HP/145T Motor
Factor
Factor
request.
➀ Drive selections found in the Quick Selection Tables are based on an ambient temperature of 80°F (27°C) at sea level (0 to 2500 ft.). If the
environmental factors differ for your specific application, the application-adjusted thermal rating must be calculated to verify the drive selection.
See the Quick Selection example on page 12 and the application-adjusted thermal rating procedure on page 42.
➁ Published values of overhung load and sprocket pitch diameter are for loads applied one shaft diameter from the seal cage with a service factor
of unity. Where overhung load is proportional to torque (i.e. pinion, sprocket or sheave applications) adjustment to the published values must be
made based on the minimum required service factor. Refer to page 48 for additional information.
© Rexnord 2014
(311-110) 15
Approx. L.S.
Shaft RPM
Drive Size &
Reduction
Exact Ratio
HP Rating
Service Factor
Minimum
Cooling
Required
L.S. Shaft OHL
Capacity
(lb) ➁
Minimum L.S.
Shaft Sprocket
Pitch Dia (in) ➁
25.0
20.0
16.5
13.5
13.5
11.0
11.0
9.0
7.5
7.5
6.0
6.0
5.0
5.0
5.0
4.0
4.0
4.0
3.2
3.2
3.2
2.7
2.7
2.2
2.2
2.2
1.8
1.8
1.8
2040F_3
2040F_3
2040F_3
2040F_3
2050F_3
2040F_3
2050F_3
2050F_4
2050F_4
2060F_4
2050F_4
2060F_4
2050F_4
2060F_4
2070F_4
2060F_4
2070F_4
2080F_4
2060F_4
2070F_4
2080F_4
2070F_4
2080F_4
2070F_4
2080F_4
2090F_4
2080F_4
2090F_4
2100F_4
69.99
82.37
105.0
125.0
127.7
159.4
156.9
187.5
231.5
239.6
286.1
296.3
343.3
363.2
358.7
449.4
443.8
436.4
543.0
542.7
523.5
641.4
638.7
785.9
772.8
783.1
927.2
945.2
999.9
5.69
4.79
3.80
3.16
5.58
2.50
4.54
3.53
3.08
5.17
2.49
4.24
2.08
3.46
5.03
2.80
4.06
5.06
2.32
3.30
3.98
2.81
4.14
2.29
2.86
5.36
2.25
4.44
5.88
2.85
2.40
1.90
1.58
2.79
1.25
2.27
1.77
1.54
2.59
1.25
2.12
1.04
1.73
2.52
1.40
2.03
2.53
1.16
1.65
1.99
1.41
2.07
1.15
1.43
2.68
1.13
2.22
2.94
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
3400
3400
3400
3400
5250
3400
5250
5250
5250
6500
5250
6500
5250
6500
8500
6500
8500
11000
6500
8500
11000
8500
11000
8500
11000
14000
11000
14000
17000
2.96
3.71
4.49
5.49
3.56
6.74
4.36
5.33
6.40
5.17
8.00
6.46
9.60
7.75
5.93
9.69
7.41
5.73
12.12
9.26
7.16
10.98
8.48
13.48
10.41
8.18
12.73
10.00
8.24
2 HP/145T Motor
1750 rpm 208-230/460 Volts,
Factor
request.
Approx. L.S.
Shaft RPM
Drive Size &
Reduction
Exact Ratio
HP Rating
Service Factor
Minimum
Cooling
Required
L.S. Shaft OHL
Capacity
(lb) ➁
Minimum L.S.
Shaft Sprocket
Pitch Dia (in) ➁
37.0
30.0
25.0
20.0
20.0
16.5
16.5
13.5
13.5
11.0
11.0
9.0
9.0
7.5
7.5
7.5
6.0
6.0
5.0
5.0
5.0
4.0
4.0
3.2
3.2
3.2
2.7
2.7
2.7
2.2
2.2
1.8
1.8
1.8
2040F_3
2040F_3
2040F_3
2040F_3
2050F_3
2040F_3
2050F_3
2040F_3
2050F_3
2050F_3
2060F_3
2050F_4
2060F_3
2050F_4
2060F_4
2070F_4
2060F_4
2070F_4
2060F_4
2070F_4
2080F_4
2070F_4
2080F_4
2070F_4
2080F_4
2090F_4
2080F_4
2090F_4
2100F_4
2090F_4
2100F_4
2090F_4
2100F_4
2110F_4
45.86
57.62
69.99
82.37
84.70
105.0
104.1
125.0
127.7
156.9
156.7
187.5
190.1
231.5
239.6
236.6
296.3
292.6
363.2
358.7
360.7
443.8
436.4
542.7
523.5
533.7
638.7
644.9
660.4
783.1
844.5
945.2
999.9
967.6
8.67
6.91
5.69
4.79
8.41
3.80
6.85
3.16
5.58
4.54
7.96
3.53
6.62
3.08
5.17
7.62
4.24
6.16
3.46
5.03
7.32
4.06
5.06
3.30
3.98
7.86
4.14
6.50
8.90
5.36
6.90
4.44
5.88
8.75
2.89
2.30
1.90
1.60
2.80
1.27
2.28
1.05
1.86
1.51
2.65
1.18
2.21
1.03
1.72
2.54
1.41
2.05
1.15
1.68
2.44
1.35
1.69
1.10
1.33
2.62
1.38
2.17
2.97
1.79
2.30
1.48
1.96
2.92
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
3400
3400
3400
3400
5250
3400
5250
3400
5250
5250
6500
5250
6500
5250
6500
8500
6500
8500
6500
8500
11000
8500
11000
8500
11000
14000
11000
14000
17000
14000
17000
14000
17000
18500
3.00
3.71
4.45
5.56
3.60
6.74
4.36
8.24
5.33
6.55
5.29
8.00
6.46
9.60
7.75
5.93
9.69
7.41
11.63
8.89
6.87
11.12
8.59
13.90
10.74
8.44
12.73
10.00
8.24
12.27
10.11
15.00
12.35
11.35
3 HP/182T Motor
1750 rpm 208-230/460 Volts,
Factor
request.
16 (311-110)
© Rexnord 2014
Approx. L.S.
Shaft RPM
Drive Size &
Reduction
Exact Ratio
HP Rating
Service Factor
Minimum
Cooling
Required
L.S. Shaft OHL
Capacity
(lb) ➁
Minimum L.S.
Shaft Sprocket
Pitch Dia (in) ➁
68.0
2040F_2
25.25
14.6
2.92
None
3400
2.72
56.0
2040F_2
29.43
12.8
2.56
None
3400
3.31
45.0
2040F_3
38.08
10.4
2.08
None
3400
4.12
37.0
2040F_3
45.86
8.67
1.73
None
3400
5.01
30.0
2040F_3
57.62
6.91
1.38
None
3400
6.18
30.0
2050F_3
55.63
12.8
2.56
None
5250
4.00
25.0
2040F_3
69.99
5.69
1.14
None
3400
7.41
25.0
2050F_3
68.61
10.4
2.08
None
5250
4.80
20.0
2050F_3
84.70
8.41
1.68
None
5250
6.00
20.0
2060F_3
85.69
14.7
2.94
None
6500
4.85
16.5
2050F_3
104.1
6.85
1.37
None
5250
7.27
16.5
2060F_3
106.5
11.4
2.28
None
6500
5.87
13.5
2050F_3
127.7
5.58
1.12
None
5250
8.89
13.5
2060F_3
131.3
9.54
1.91
None
6500
7.18
13.5
2070F_3
129.6
13.9
2.78
None
8500
5.49
11.0
2060F_3
156.7
7.96
1.59
None
6500
8.81
11.0
2070F_3
151.1
11.9
2.38
None
8500
6.74
9.0
2060F_3
190.1
6.62
1.32
None
6500
10.77
9.0
2070F_3
184.8
9.65
1.93
None
8500
8.24
9.0
2080F_4
192.3
13.7
2.74
None
11000
6.36
7.5
2060F_4
239.6
5.17
1.03
None
6500
12.92
7.5
2070F_4
236.6
7.62
1.52
None
8500
9.88
7.5
2080F_4
237.8
11.1
2.22
None
11000
7.64
6.0
2070F_4
292.6
6.16
1.23
None
8500
12.35
6.0
2080F_4
291.5
9.06
1.81
None
11000
9.55
6.0
2090F_4
284.5
14.7
2.94
None
14000
7.50
5.0
2070F_4
358.7
5.03
1.01
None
8500
14.82
5.0
2080F_4
360.7
7.32
1.46
None
11000
11.45
5.0
2090F_4
351.9
11.9
2.38
None
14000
9.00
4.0
2080F_4
436.4
5.06
1.01
None
11000
14.32
11.25
4.0
2090F_4
431.4
9.72
1.94
None
14000
4.0
2100F_4
437.6
13.4
2.68
None
17000
9.26
3.2
2090F_4
533.7
7.86
1.57
None
14000
14.06
3.2
2100F_4
518.1
11.3
2.26
None
17000
11.58
2.7
2090F_4
644.9
6.50
1.30
None
14000
16.67
2.7
2100F_4
660.4
8.90
1.78
None
17000
13.73
2.7
2110F_4
653.6
12.9
2.58
None
18500
12.61
2.2
2090F_4
783.1
5.36
1.07
None
14000
20.45
2.2
2100F_4
844.5
6.90
1.38
None
17000
16.84
2.2
2110F_4
791.4
11.1
2.22
None
18500
15.48
2.2
2120F_4
783.6
14.8
2.96
None
19000
15.07
1.8
2100F_4
999.9
5.88
1.18
None
17000
20.59
1.8
2110F_4
967.6
8.75
1.75
None
18500
18.92
1.8
2120F_4
961.3
12.1
2.42
None
19000
18.42
5 HP/184T Motor
1750 rpm 208-230/460 Volts,
Factor
request.
© Rexnord 2014
(311-110) 17
7.5 HP/1750 RPM/213T Motor ➀
Approx. L.S.
Shaft RPM
Drive Size &
Reduction
Exact Ratio
HP Rating
Service Factor
Minimum
Cooling
Required
L.S. Shaft OHL
Capacity
(lb) ➁
Minimum L.S.
Shaft Sprocket
Pitch Dia (in) ➁
84.0
68.0
56.0
45.0
45.0
37.0
37.0
30.0
30.0
25.0
25.0
20.0
20.0
20.0
16.5
16.5
13.5
13.5
13.5
11.0
11.0
11.0
9.0
9.0
9.0
7.5
7.5
7.5
6.0
6.0
6.0
5.0
5.0
4.0
4.0
4.0
3.2
3.2
3.2
3.2
2.7
2.7
2.7
2.2
2.2
2.2
1.8
1.8
1.8
2040F_2
2040F_2
2040F_2
2040F_3
2050F_3
2040F_3
2050F_3
2050F_3
2060F_3
2050F_3
2060F_3
2050F_3
2060F_3
2070F_3
2060F_3
2070F_3
2060F_3
2070F_3
2080F_3
2060F_3
2070F_3
2080F_3
2070F_3
2080F_4
2090F_3
2070F_4
2080F_4
2090F_4
2080F_4
2090F_4
2100F_4
2090F_4
2100F_4
2090F_4
2100F_4
2110F_4
2090F_4
2100F_4
2110F_4
2120F_4
2100F_4
2110F_4
2120F_4
2110F_4
2120F_4
2130F_4
2110F_4
2120F_4
2130F_4
19.81
25.25
29.43
38.08
37.57
45.86
45.64
55.63
56.62
68.61
70.64
84.70
85.69
86.43
106.5
101.7
131.3
129.6
130.4
156.7
151.1
156.4
184.8
192.3
193.6
236.6
237.8
236.7
291.5
284.5
306.1
351.9
371.9
431.4
437.6
434.9
533.7
518.1
531.7
535.7
660.4
653.6
657.2
791.4
783.6
782.8
967.6
961.3
940.9
19.3
14.6
12.8
10.4
18.9
8.67
15.6
12.8
22.2
10.4
17.1
8.41
14.7
20.8
11.4
17.7
9.54
13.9
19.9
7.96
11.9
16.3
9.65
13.7
21.6
7.62
11.1
17.7
9.06
14.7
19.2
11.9
15.8
9.72
13.4
20.1
7.86
11.3
15.9
21.7
8.90
12.9
17.7
11.1
14.8
18.3
8.75
12.1
15.4
2.57
1.95
1.71
1.39
2.52
1.16
2.08
1.71
2.96
1.39
2.28
1.12
1.96
2.77
1.52
2.36
1.27
1.85
2.65
1.06
1.59
2.17
1.29
1.83
2.88
1.02
1.48
2.36
1.21
1.96
2.56
1.59
2.11
1.30
1.79
2.68
1.05
1.51
2.12
2.89
1.19
1.72
2.36
1.48
1.97
2.44
1.17
1.61
2.05
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
3400
3400
3400
3400
5250
3400
5250
5250
6500
5250
6500
5250
6500
8500
6500
8500
6500
8500
11000
6500
8500
11000
8500
11000
14000
8500
11000
14000
11000
14000
17000
14000
17000
14000
17000
18500
14000
17000
18500
19000
17000
18500
19000
18500
19000
22500
18500
19000
22500
3.31
4.09
4.96
6.18
4.00
7.51
4.86
6.00
4.85
7.20
5.82
9.00
7.27
5.56
8.81
6.74
10.77
8.24
6.36
13.22
10.11
7.81
12.35
9.55
7.50
14.82
11.45
9.00
14.32
11.25
9.26
13.50
11.12
16.88
13.90
12.77
21.09
17.37
15.96
15.54
20.59
18.92
18.42
23.22
22.61
19.09
28.38
27.63
23.33
7.5 HP/213T Motor
1750 rpm 208-230/460 Volts,
3 Phase, 60 Hz, NEMA B,
Factor
request.
18 (311-110)
© Rexnord 2014
Approx. L.S.
Shaft RPM
Drive Size &
Reduction
Exact Ratio
HP Rating
Service Factor
Minimum
Cooling
Required
L.S. Shaft OHL
Capacity
(lb) ➁
Minimum L.S.
Shaft Sprocket
Pitch Dia (in) ➁
420
380
125
100
84.0
68.0
68.0
56.0
56.0
45.0
45.0
37.0
37.0
30.0
30.0
25.0
25.0
25.0
20.0
20.0
16.5
16.5
16.5
13.5
13.5
11.0
11.0
11.0
9.0
9.0
9.0
7.5
7.5
7.5
6.0
6.0
5.0
5.0
5.0
4.0
4.0
4.0
3.2
3.2
3.2
2.7
2.7
2.7
2.2
2.2
2.2
1.8
1.8
2040F_2
2040F_2
2040F_2
2040F_2
2040F_2
2040F_2
2050F_2
2040F_2
2050F_2
2040F_3
2050F_3
2050F_3
2060F_3
2050F_3
2060F_3
2050F_3
2060F_3
2070F_3
2060F_3
2070F_3
2060F_3
2070F_3
2080F_3
2070F_3
2080F_3
2070F_3
2080F_3
2090F_3
2080F_4
2090F_3
2100F_4
2080F_4
2090F_4
2100F_4
2090F_4
2100F_4
2090F_4
2100F_4
2110F_4
2100F_4
2110F_4
2120F_4
2100F_4
2110F_4
2120F_4
2110F_4
2120F_4
2130F_4
2110F_4
2120F_4
2130F_4
2120F_4
2130F_4
4.120
4.655
13.86
16.83
19.81
25.25
25.27
29.43
30.16
38.08
37.57
45.64
46.65
55.63
56.62
68.61
70.64
71.14
85.69
86.43
106.5
101.7
107.7
129.6
130.4
151.1
156.4
157.5
192.3
193.6
202.3
237.8
236.7
243.7
284.5
306.1
351.9
371.9
352.3
437.6
434.9
445.7
518.1
531.7
535.7
653.6
657.2
643.3
791.4
783.6
782.8
961.3
940.9
28.5
28.5
28.1
23.3
19.3
14.6
28.0
12.8
23.5
10.4
18.9
15.6
26.9
12.8
22.2
10.4
17.1
25.3
14.7
20.8
11.4
17.7
23.8
13.9
19.9
11.9
16.3
26.6
13.7
21.6
28.9
11.1
17.7
24.1
14.7
19.2
11.9
15.8
24.8
13.4
20.1
26.0
11.3
15.9
21.7
12.9
17.7
25.9
11.1
14.8
18.3
12.1
15.4
2.85
2.85
2.81
2.33
1.93
1.46
2.80
1.28
2.35
1.04
1.89
1.56
2.69
1.28
2.22
1.04
1.71
2.53
1.47
2.08
1.14
1.77
2.38
1.39
1.99
1.19
1.63
2.66
1.37
2.16
2.89
1.11
1.77
2.41
1.47
1.92
1.19
1.58
2.48
1.34
2.01
2.60
1.13
1.59
2.17
1.29
1.77
2.59
1.11
1.48
1.83
1.21
1.54
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
2530
2650
3030
3030
3400
3400
5250
3400
5250
3400
5250
5250
6500
5250
6500
5250
6500
8500
6500
8500
6500
8500
11000
8500
11000
8500
11000
14000
11000
14000
17000
11000
14000
17000
14000
17000
14000
17000
18500
17000
18500
19000
17000
18500
19000
18500
19000
22500
18500
19000
22500
19000
22500
1.19
1.25
3.33
4.16
4.41
5.45
3.53
6.62
4.29
8.24
5.33
6.49
5.24
8.00
6.46
9.60
7.75
5.93
9.69
7.41
11.75
8.98
6.94
10.98
8.48
13.48
10.41
8.18
12.73
10.00
8.24
15.27
12.00
9.88
15.00
12.35
18.00
14.82
13.62
18.53
17.03
16.58
23.16
21.28
20.72
25.23
24.56
20.74
30.96
30.14
25.45
36.84
31.11
10 HP/215T Motor
1750 rpm 208-230/460 Volts,
Factor
request.
© Rexnord 2014
(311-110) 19
Approx. L.S.
Shaft RPM
Drive Size &
Reduction
Exact Ratio
HP Rating
Service Factor
Minimum
Cooling
Required
L.S. Shaft OHL
Capacity
(lb) ➁
Minimum L.S.
Shaft Sprocket
Pitch Dia (in) ➁
640
575
520
470
420
380
230
190
155
125
100
100
84
84
68
56
56
45
45
37
37
37
30
30
30
25
25
25
20
20
16.5
16.5
16.5
13.5
13.5
13.5
11.0
11.0
11.0
9.0
9.0
7.5
7.5
7.5
6.0
6.0
6.0
5.0
5.0
5.0
4.0
4.0
4.0
3.2
3.2
3.2
2.7
2.7
2.2
1.8
2040F_2
2040F_2
2040F_2
2040F_2
2040F_2
2040F_2
2040F_2
2040F_2
2040F_2
2040F_2
2040F_2
2050F_2
2040F_2
2050F_2
2050F_2
2050F_2
2060F_2
2050F_3
2060F_3
2050F_3
2060F_3
2070F_3
2060F_3
2070F_3
2080F_3
2060F_3
2070F_3
2080F_3
2070F_3
2080F_3
2070F_3
2080F_3
2090F_3
2080F_3
2090F_3
2100F_3
2080F_3
2090F_3
2100F_3
2090F_3
2100F_4
2090F_4
2100F_4
2110F_4
2100F_4
2110F_4
2120F_4
2100F_4
2110F_4
2120F_4
2110F_4
2120F_4
2130F_4
2110F_4
2120F_4
2130F_4
2120F_4
2130F_4
2130F_4
2130F_4
2.723
3.076
3.279
3.705
4.120
4.655
7.368
9.158
11.03
13.86
16.83
16.65
19.81
20.56
25.27
30.16
31.69
37.57
38.46
45.64
46.65
46.27
56.62
56.63
57.56
70.64
71.14
69.64
86.43
87.65
101.7
107.7
103.4
130.4
129.7
133.8
156.4
157.5
158.4
193.6
202.3
236.7
243.7
234.3
306.1
285.6
292.7
371.9
352.3
361.0
434.9
445.7
433.5
531.7
535.7
535.1
657.2
643.3
782.8
940.9
39.8
39.8
34.7
34.7
28.5
28.5
44.7
38.2
33.3
28.1
23.3
42.3
19.3
34.4
28.0
23.5
39.7
18.9
32.3
15.6
26.9
37.8
22.2
31.7
44.9
17.1
25.3
36.9
20.8
30.1
17.7
23.8
40.4
19.9
32.3
43.8
16.3
26.6
37.0
21.6
28.9
17.7
24.1
37.3
19.2
30.6
39.6
15.8
24.8
32.1
20.1
26.0
38.5
15.9
21.7
31.1
17.7
25.9
18.3
15.4
2.65
2.65
2.31
2.31
1.90
1.90
2.98
2.55
2.22
1.87
1.55
2.82
1.29
2.29
1.87
1.57
2.65
1.26
2.15
1.04
1.79
2.52
1.48
2.11
2.99
1.14
1.69
2.46
1.39
2.01
1.18
1.59
2.69
1.33
2.15
2.92
1.09
1.77
2.47
1.44
1.93
1.18
1.61
2.49
1.28
2.04
2.64
1.05
1.65
2.14
1.34
1.73
2.57
1.06
1.45
2.07
1.18
1.73
1.22
1.03
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
2380
2380
2530
2530
2530
2650
2380
2670
2840
3030
3030
4370
3400
5120
5250
5250
6500
5250
6500
5250
6500
8500
6500
8500
11000
6500
8500
11000
8500
11000
8500
11000
14000
11000
14000
17000
11000
14000
17000
14000
17000
14000
17000
18500
17000
18500
19000
17000
18500
19000
18500
19000
22500
18500
19000
22500
19000
22500
22500
22500
1.24
1.38
1.44
1.59
1.78
1.88
3.45
3.73
4.29
4.99
6.24
4.32
6.62
4.39
5.29
6.43
5.19
8.00
6.46
9.73
7.86
6.01
9.69
7.41
5.73
11.63
8.89
6.87
11.12
8.59
13.48
10.41
8.18
12.73
10.00
8.24
15.62
12.27
10.11
15.00
12.35
18.00
14.82
13.62
18.53
17.03
16.58
22.24
20.43
19.89
25.54
24.87
21.00
31.93
31.09
26.25
36.84
31.11
38.18
46.67
15 HP/254T Motor
Factor
Factor
request.
20 (311-110)
© Rexnord 2014
Approx. L.S.
Shaft RPM
Drive Size &
Reduction
Exact Ratio
HP Rating
Service Factor
Minimum
Cooling
Required
L.S. Shaft OHL
Capacity
(lb) ➁
Minimum L.S.
Shaft Sprocket
Pitch Dia (in) ➁
1170
950
860
780
700
640
575
520
470
420
420
380
350
280
230
190
155
125
125
100
100
84
84
68
68
56
56
56
45
45
37
37
37
30
30
30
25
25
25
20
20
20
16.5
16.5
16.5
13.5
13.5
13.5
11.0
11.0
11.0
9.0
9.0
9.0
9.0
7.5
7.5
7.5
6.0
6.0
6.0
5.0
5.0
5.0
4.0
4.0
4.0
3.2
3.2
2.7
2040F_2
2040F_2
2040F_2
2040F_2
2040F_2
2040F_2
2040F_2
2040F_2
2040F_2
2040F_2
2050F_2
2040F_2
2040F_2
2040F_2
2040F_2
2040F_2
2040F_2
2040F_2
2050F_2
2040F_2
2050F_2
2050F_2
2060F_2
2050F_2
2060F_2
2050F_2
2060F_2
2070F_2
2060F_3
2070F_3
2060F_3
2070F_3
2080F_3
2060F_3
2070F_3
2080F_3
2070F_3
2080F_3
2090F_3
2070F_3
2080F_3
2090F_3
2080F_3
2090F_3
2100F_3
2080F_3
2090F_3
2100F_3
2090F_3
2100F_3
2110F_3
2090F_3
2100F_4
2110F_4
2120F_4
2100F_4
2110F_4
2120F_4
2110F_4
2120F_4
2130F_4
2110F_4
2120F_4
2130F_4
2110F_4
2120F_4
2130F_4
2120F_4
2130F_4
2130F_4
1.465
1.820
2.057
2.191
2.475
2.723
3.076
3.279
3.705
4.120
4.001
4.655
4.929
6.122
7.368
9.158
11.03
13.86
13.50
16.83
16.65
20.56
21.13
25.27
25.63
30.16
31.69
31.08
38.46
37.83
46.65
46.27
47.23
56.62
56.63
57.56
71.14
69.64
69.86
86.43
87.65
85.18
107.7
103.4
104.6
130.4
129.7
133.8
157.5
158.4
155.7
193.6
202.3
192.9
197.7
243.7
234.3
240.1
285.6
292.7
288.4
352.3
361.0
351.4
434.9
445.7
433.5
535.7
535.1
643.3
57.6
50.8
50.8
50.1
45.4
39.8
39.8
34.7
34.7
28.5
56.7
28.5
57.6
50.8
44.7
38.2
33.3
28.1
52.1
23.3
42.3
34.4
59.3
28.0
49.0
23.5
39.7
53.1
32.3
46.2
26.9
37.8
53.9
22.2
31.7
44.9
25.3
36.9
59.8
20.8
30.1
49.1
23.8
40.4
56.0
19.9
32.3
43.8
26.6
37.0
53.8
21.6
28.9
45.3
58.6
24.1
37.3
48.3
30.6
39.6
57.8
24.8
32.1
47.4
20.1
26.0
38.5
21.7
31.1
25.9
2.88
2.54
2.54
2.50
2.27
1.99
1.99
1.74
1.74
1.43
2.84
1.43
2.88
2.54
2.24
1.91
1.67
1.41
2.61
1.17
2.12
1.72
2.97
1.40
2.45
1.18
1.99
2.66
1.62
2.31
1.35
1.89
2.70
1.11
1.59
2.25
1.27
1.85
2.99
1.04
1.51
2.46
1.19
2.02
2.80
1.00
1.62
2.19
1.33
1.85
2.69
1.08
1.45
2.27
2.93
1.21
1.87
2.42
1.53
1.98
2.89
1.24
1.61
2.37
1.01
1.30
1.93
1.09
1.56
1.30
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
2030
2040
2150
2200
2290
2380
2380
2530
2530
2530
2730
2650
2260
2280
2380
2670
2840
3030
4370
3030
4370
5120
6500
5250
6500
5250
6500
8500
6500
8500
6500
8500
11000
6500
8500
11000
8500
11000
14000
8500
11000
14000
11000
14000
17000
11000
14000
17000
14000
17000
18500
14000
17000
18500
19000
17000
18500
19000
18500
19000
22500
18500
19000
22500
18500
19000
22500
19000
22500
22500
1.06
1.30
1.36
1.47
1.57
1.65
1.84
1.92
2.12
2.37
2.20
2.50
3.19
3.95
4.60
4.97
5.72
6.65
4.61
8.32
5.77
5.86
4.62
7.06
5.70
8.57
6.92
5.29
8.62
6.59
10.48
8.01
6.19
12.92
9.88
7.64
11.86
9.16
7.20
14.82
11.45
9.00
13.88
10.91
8.98
16.97
13.33
10.98
16.36
13.48
12.38
20.00
16.47
15.14
14.74
19.76
18.16
17.68
22.70
22.11
18.67
27.24
26.53
22.40
34.05
33.16
28.00
41.45
35.00
41.48
20 HP/256T Motor
Factor
Factor
request.
© Rexnord 2014
(311-110) 21
Approx. L.S.
Shaft RPM
Drive Size &
Reduction
Exact Ratio
HP Rating
Service Factor
Minimum
Cooling
Required
L.S. Shaft OHL
Capacity
(lb) ➁
Minimum L.S.
Shaft Sprocket
Pitch Dia (in) ➁
1170
950
860
780
700
640
575
520
520
470
420
420
380
380
350
280
230
190
155
155
125
125
100
100
84
84
68
68
68
56
56
45
45
45
37
37
37
30
30
30
25
25
25
20
20
20
16.5
16.5
13.5
13.5
13.5
11.0
11.0
11.0
11.0
9.0
9.0
9.0
7.5
7.5
7.5
6.0
6.0
6.0
5.0
5.0
4.0
4.0
3.2
2.7
2040F_2
2040F_2
2040F_2
2040F_2
2040F_2
2040F_2
2040F_2
2040F_2
2050F_2
2040F_2
2040F_2
2050F_2
2040F_2
2050F_2
2040F_2
2040F_2
2040F_2
2040F_2
2040F_2
2050F_2
2040F_2
2050F_2
2050F_2
2060F_2
2050F_2
2060F_2
2050F_2
2060F_2
2070F_2
2060F_2
2070F_2
2060F_3
2070F_3
2080F_3
2060F_3
2070F_3
2080F_3
2070F_3
2080F_3
2090F_3
2070F_3
2080F_3
2090F_3
2080F_3
2090F_3
2100F_3
2090F_3
2100F_3
2090F_3
2100F_3
2110F_3
2090F_3
2100F_3
2110F_3
2120F_3
2100F_4
2110F_4
2120F_4
2110F_4
2120F_4
2130F_4
2110F_4
2120F_4
2130F_4
2120F_4
2130F_4
2120F_4
2130F_4
2130F_4
2130F_4
1.465
1.820
2.057
2.191
2.475
2.723
3.076
3.279
3.283
3.705
4.120
4.001
4.655
4.512
4.929
6.122
7.368
9.158
11.03
11.08
13.86
13.50
16.65
17.19
20.56
21.13
25.27
25.63
25.12
31.69
31.08
38.46
37.83
38.88
46.65
46.27
47.23
56.63
57.56
57.53
71.14
69.64
69.86
87.65
85.18
88.36
103.4
104.6
129.7
133.8
128.2
157.5
158.4
155.7
158.2
202.3
192.9
197.7
234.3
240.1
237.4
285.6
292.7
288.4
361.0
351.4
445.7
433.5
535.1
643.3
57.6
50.8
50.8
50.1
45.4
39.8
39.8
34.7
68.0
34.7
28.5
56.7
28.5
68.0
57.6
50.8
44.7
38.2
33.3
63.2
28.1
52.1
42.3
69.8
34.4
59.3
28.0
49.0
68.0
39.7
53.1
32.3
46.2
63.7
26.9
37.8
53.9
31.7
44.9
72.3
25.3
36.9
59.8
30.1
49.1
66.2
40.4
56.0
32.3
43.8
65.1
26.6
37.0
53.8
73.2
28.9
45.3
58.6
37.3
48.3
67.0
30.6
39.6
57.8
32.1
47.4
26.0
38.5
31.1
25.9
2.30
2.03
2.03
2.00
1.82
1.59
1.59
1.39
2.72
1.39
1.14
2.27
1.14
2.72
2.30
2.03
1.79
1.53
1.33
2.53
1.12
2.08
1.69
2.79
1.38
2.37
1.12
1.96
2.72
1.59
2.12
1.29
1.85
2.55
1.08
1.51
2.16
1.27
1.80
2.89
1.01
1.48
2.39
1.20
1.96
2.65
1.62
2.24
1.29
1.75
2.60
1.06
1.48
2.15
2.93
1.16
1.81
2.34
1.49
1.93
2.68
1.22
1.58
2.31
1.28
1.90
1.04
1.54
1.24
1.04
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
2030
2040
2150
2200
2290
2380
2380
2530
2730
2530
2530
2730
2650
3140
2260
2280
2380
2670
2840
4020
3030
4370
4370
6500
5120
6500
5250
6500
8500
6500
8500
6500
8500
11000
6500
8500
11000
8500
11000
14000
8500
11000
14000
11000
14000
17000
14000
17000
14000
17000
18500
14000
17000
18500
19000
17000
18500
19000
18500
19000
22500
18500
19000
22500
19000
22500
19000
22500
22500
22500
1.33
1.63
1.70
1.84
1.97
2.07
2.30
2.39
2.22
2.65
2.96
2.75
3.13
2.64
3.98
4.93
5.75
6.21
7.16
5.06
8.32
5.77
7.21
4.85
7.32
5.77
8.82
7.13
5.45
8.65
6.62
10.77
8.24
6.36
13.10
10.02
7.74
12.35
9.55
7.50
14.82
11.45
9.00
14.32
11.25
9.26
13.64
11.23
16.67
13.73
12.61
20.45
16.84
15.48
15.07
20.59
18.92
18.42
22.70
22.11
18.67
28.38
27.63
23.33
33.16
28.00
41.45
35.00
43.75
51.85
22 (311-110)
25 HP/284T Motor
Factor
Factor
request.
➀ Drive selections found in
the Quick Selection Tables
are based on an ambient
temperature of 80°F (27°C)
at sea level (0 to 2500
ft.). If the environmental
factors differ for your
specific application, the
application-adjusted thermal
rating must be calculated
to verify the drive selection.
See the Quick Selection
example on page 12 and
the application-adjusted
thermal rating procedure on
page 42.
➁ Published values of overhung
load and sprocket pitch
diameter are for loads applied
one shaft diameter from the
seal cage with a service factor
of unity. Where overhung load
is proportional to torque (i.e.
pinion, sprocket or sheave
applications) adjustment to
the published values must be
made based on the minimum
required service factor. Refer
to page 48 for additional
information.
© Rexnord 2014
Approx. L.S.
Shaft RPM
Drive Size &
Reduction
Exact Ratio
HP Rating
Service Factor
Minimum
Cooling
Required
L.S. Shaft OHL
Capacity
(lb) ➁
Minimum L.S.
Shaft Sprocket
Pitch Dia (in) ➁
1170
950
950
860
780
700
640
640
575
520
520
470
470
420
380
350
280
230
230
190
190
155
155
125
100
100
84
84
84
68
68
56
56
56
45
45
45
37
37
37
30
30
30
25
25
25
20
20
20
16.5
16.5
16.5
13.5
13.5
13.5
13.5
11.0
11.0
11.0
9.0
9.0
9.0
7.5
7.5
7.5
6.0
6.0
6.0
5.0
5.0
4.0
3.2
2040F_2
2040F_2
2050F_2
2040F_2
2040F_2
2040F_2
2040F_2
2050F_2
2040F_2
2040F_2
2050F_2
2040F_2
2050F_2
2050F_2
2050F_2
2040F_2
2040F_2
2040F_2
2050F_2
2040F_2
2050F_2
2040F_2
2050F_2
2050F_2
2050F_2
2060F_2
2050F_2
2060F_2
2070F_2
2060F_2
2070F_2
2060F_2
2070F_2
2080F_2
2060F_3
2070F_3
2080F_3
2070F_3
2080F_3
2090F_3
2070F_3
2080F_3
2090F_3
2080F_3
2090F_3
2100F_3
2080F_3
2090F_3
2100F_3
2090F_3
2100F_3
2110F_3
2090F_3
2100F_3
2110F_3
2120F_3
2100F_3
2110F_3
2120F_3
2110F_4
2120F_4
2130F_4
2110F_4
2120F_4
2130F_4
2110F_4
2120F_4
2130F_4
2120F_4
2130F_4
2130F_4
2130F_4
1.465
1.820
1.822
2.057
2.191
2.475
2.723
2.702
3.076
3.279
3.283
3.705
3.714
4.001
4.512
4.929
6.122
7.368
7.598
9.158
9.119
11.03
11.08
13.50
16.65
17.19
20.56
21.13
20.54
25.63
25.12
31.69
31.08
31.15
38.46
37.83
38.88
46.27
47.23
48.23
56.63
57.56
57.53
69.64
69.86
71.64
87.65
85.18
88.36
103.4
104.6
104.9
129.7
133.8
128.2
128.9
158.4
155.7
158.2
192.9
197.7
199.0
234.3
240.1
237.4
285.6
292.7
288.4
361.0
351.4
433.5
535.1
57.6
50.8
87.5
50.8
50.1
45.4
39.8
79.2
39.8
34.7
68.0
34.7
79.2
56.7
68.0
57.6
50.8
44.7
87.0
38.2
76.5
33.3
63.2
52.1
42.3
69.8
34.4
59.3
84.8
49.0
68.0
39.7
53.1
77.7
32.3
46.2
63.7
37.8
53.9
86.3
31.7
44.9
72.3
36.9
59.8
81.6
30.1
49.1
66.2
40.4
56.0
82.5
32.3
43.8
65.1
89.7
37.0
53.8
73.2
45.3
58.6
81.0
37.3
48.3
67.0
30.6
39.6
57.8
32.1
47.4
38.5
31.1
1.92
1.69
2.92
1.69
1.67
1.51
1.33
2.64
1.33
1.16
2.27
1.16
2.64
1.89
2.27
1.92
1.69
1.49
2.90
1.27
2.55
1.11
2.11
1.74
1.41
2.33
1.15
1.98
2.83
1.63
2.27
1.32
1.77
2.59
1.08
1.54
2.12
1.26
1.80
2.88
1.06
1.50
2.41
1.23
1.99
2.72
1.00
1.64
2.21
1.35
1.87
2.75
1.08
1.46
2.17
2.99
1.23
1.79
2.44
1.51
1.95
2.70
1.24
1.61
2.23
1.02
1.32
1.93
1.07
1.58
1.28
1.04
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
2030
2040
2450
2150
2200
2290
2380
2580
2380
2530
2730
2530
2730
2730
3140
2260
2280
2380
3300
2670
3700
2840
4020
4370
4370
6500
5120
6500
8500
6500
8500
6500
8500
11000
6500
8500
11000
8500
11000
14000
8500
11000
14000
11000
14000
17000
11000
14000
17000
14000
17000
18500
14000
17000
18500
19000
17000
18500
19000
18500
19000
22500
18500
19000
22500
18500
19000
22500
19000
22500
22500
22500
1.59
1.95
1.62
2.04
2.20
2.36
2.48
2.29
2.76
2.87
2.66
3.18
2.95
3.30
3.17
4.78
5.92
6.91
4.98
7.45
5.38
8.59
6.07
6.92
8.65
5.82
8.79
6.92
5.29
8.55
6.54
10.38
7.94
6.14
12.92
9.88
7.64
12.02
9.29
7.30
14.82
11.45
9.00
13.75
10.80
8.89
17.18
13.50
11.12
16.36
13.48
12.38
20.00
16.47
15.14
14.74
20.21
18.57
18.09
22.70
22.11
18.67
27.24
26.53
22.40
34.05
33.16
28.00
39.79
33.60
42.00
52.50
30 HP/286T Motor
Factor
Factor
request.
page 42.
information.
© Rexnord 2014
(311-110) 23
Approx. L.S.
Shaft RPM
Drive Size &
Reduction
Exact Ratio
HP Rating
Service Factor
Minimum
Cooling
Required
L.S. Shaft OHL
Capacity
(lb) ➁
Minimum L.S.
Shaft Sprocket
Pitch Dia (in) ➁
1170
1170
950
950
860
860
780
780
700
700
640
640
575
575
520
470
420
420
380
380
350
350
280
280
230
230
190
155
155
125
125
100
100
100
84
84
84
68
68
68
56
56
45
45
45
37
37
37
30
30
30
25
25
20
20
20
16.5
16.5
16.5
16.5
13.5
13.5
13.5
11.0
11.0
11.0
9.0
9.0
9.0
7.5
7.5
6.0
5.0
2040F_2
2050F_2
2040F_2
2050F_2
2040F_2
2050F_2
2040F_2
2050F_2
2040F_2
2050F_2
2040F_2
2050F_2
2040F_2
2050F_2
2050F_2
2050F_2
2050F_2
2060F_2
2050F_2
2060F_2
2040F_2
2050F_2
2040F_2
2050F_2
2040F_2
2050F_2
2050F_2
2050F_2
2060F_2
2050F_2
2060F_2
2050F_2
2060F_2
2070F_2
2060F_2
2070F_2
2080F_2
2060F_2
2070F_2
2080F_2
2070F_2
2080F_2
2070F_3
2080F_3
2090F_3
2080F_3
2090F_3
2100F_3
2080F_3
2090F_3
2100F_3
2090F_3
2100F_3
2090F_3
2100F_3
2110F_3
2090F_3
2100F_3
2110F_3
2120F_3
2100F_3
2110F_3
2120F_3
2110F_3
2120F_3
2130F_3
2110F_4
2120F_4
2130F_4
2120F_4
2130F_4
2130F_4
2130F_4
1.465
1.476
1.820
1.822
2.057
2.028
2.191
2.252
2.475
2.504
2.723
2.702
3.076
3.095
3.283
3.714
4.001
4.130
4.512
4.567
4.929
4.980
6.122
6.147
7.368
7.598
9.119
11.08
11.26
13.50
13.72
16.65
17.19
17.33
21.13
20.54
20.98
25.63
25.12
25.17
31.08
31.15
37.83
38.88
39.51
47.23
48.23
48.39
57.56
57.53
57.29
69.86
71.64
85.18
88.36
86.02
103.4
104.6
104.9
107.0
133.8
128.2
128.9
155.7
158.2
154.8
192.9
197.7
199.0
240.1
237.4
288.4
351.4
57.6
115
50.8
87.5
50.8
115
50.1
90.3
45.4
102
39.8
79.2
39.8
90.3
68.0
79.2
56.7
114
68.0
114
57.6
114
50.8
100
44.7
87.0
76.5
63.2
110
52.1
90.7
42.3
69.8
102
59.3
84.8
117
49.0
68.0
96.7
53.1
77.7
46.2
63.7
98.7
53.9
86.3
119
44.9
72.3
102
59.8
81.6
49.1
66.2
101
40.4
56.0
82.5
108
43.8
65.1
89.7
53.8
73.2
93.6
45.3
58.6
81.0
48.3
67.0
57.8
47.4
1.44
2.88
1.27
2.19
1.27
2.88
1.25
2.26
1.14
2.55
1.00
1.98
1.00
2.26
1.70
1.98
1.42
2.85
1.70
2.85
1.44
2.85
1.27
2.50
1.12
2.18
1.91
1.58
2.75
1.30
2.27
1.06
1.75
2.55
1.48
2.12
2.93
1.23
1.70
2.42
1.33
1.94
1.16
1.59
2.47
1.35
2.16
2.98
1.12
1.81
2.55
1.50
2.04
1.23
1.66
2.53
1.01
1.40
2.06
2.70
1.10
1.63
2.24
1.35
1.83
2.34
1.13
1.47
2.03
1.21
1.68
1.45
1.19
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
2030
2420
2040
2450
2150
2320
2200
2660
2290
2530
2380
2580
2380
2580
2730
2730
2730
5450
3140
5750
2260
3120
2280
3170
2380
3300
3700
4020
6500
4370
6500
4370
6500
8500
6500
8500
10200
6500
8500
11000
8500
11000
8500
11000
14000
11000
14000
17000
11000
14000
17000
14000
17000
14000
17000
18500
14000
17000
18500
19000
17000
18500
19000
18500
19000
22500
18500
19000
22500
19000
22500
22500
22500
2.12
1.78
2.60
2.17
2.73
2.53
2.94
2.43
3.14
2.85
3.31
3.05
3.68
3.40
3.55
3.93
4.40
2.20
4.22
2.31
6.37
4.62
7.89
5.68
9.21
6.64
7.17
8.09
5.00
9.23
6.20
11.53
7.75
5.93
9.23
7.06
5.88
11.40
8.72
6.74
10.59
8.18
13.18
10.18
8.00
12.38
9.73
8.01
15.27
12.00
9.88
14.40
11.86
18.00
14.82
13.62
21.82
17.97
16.51
16.08
21.96
20.18
19.65
24.77
24.11
20.36
30.27
29.47
24.89
35.37
29.87
37.33
44.80
24 (311-110)
40 HP/324T Motor
Factor
Factor
request.
page 42.
information.
© Rexnord 2014
Approx. L.S.
Shaft RPM
Drive Size &
Reduction
Exact Ratio
HP Rating
Service Factor
Minimum
Cooling
Required
L.S. Shaft OHL
Capacity
(lb) ➁
Minimum L.S.
Shaft Sprocket
Pitch Dia (in) ➁
1170
1170
950
950
860
860
780
780
780
700
700
640
640
575
575
520
520
470
470
420
420
380
380
350
280
280
230
230
190
190
155
155
125
125
125
100
100
100
84
84
84
68
68
56
56
56
45
45
45
37
37
37
30
30
30
25
25
25
20
20
20
16.5
16.5
16.5
13.5
13.5
13.5
11.0
11.0
11.0
9.0
9.0
7.5
6.0
2040F_2
2050F_2
2040F_2
2050F_2
2040F_2
2050F_2
2040F_2
2050F_2
2060F_2
2050F_2
2060F_2
2050F_2
2060F_2
2050F_2
2060F_2
2050F_2
2060F_2
2050F_2
2060F_2
2050F_2
2060F_2
2050F_2
2060F_2
2050F_2
2050F_2
2060F_2
2050F_2
2060F_2
2050F_2
2060F_2
2050F_2
2060F_2
2050F_2
2060F_2
2070F_2
2060F_2
2070F_2
2080F_2
2060F_2
2070F_2
2080F_2
2070F_2
2080F_2
2070F_2
2080F_2
2090F_2
2080F_3
2090F_3
2100F_3
2080F_3
2090F_3
2100F_3
2090F_3
2100F_3
2110F_3
2090F_3
2100F_3
2110F_3
2100F_3
2110F_3
2120F_3
2100F_3
2110F_3
2120F_3
2110F_3
2120F_3
2130F_3
2110F_3
2120F_3
2130F_3
2120F_4
2130F_4
2130F_4
2130F_4
1.465
1.476
1.820
1.822
2.057
2.028
2.191
2.252
2.295
2.504
2.537
2.702
2.827
3.095
3.126
3.283
3.400
3.714
3.759
4.001
4.130
4.512
4.567
4.980
6.147
6.256
7.598
7.708
9.119
9.269
11.08
11.26
13.50
13.72
13.50
17.19
17.33
17.34
21.13
20.54
20.98
25.12
25.17
31.08
31.15
31.15
38.88
39.51
40.24
47.23
48.23
48.39
57.53
57.29
56.56
69.86
71.64
68.94
88.36
86.02
88.15
104.6
104.9
107.0
128.2
128.9
128.5
155.7
158.2
154.8
197.7
199.0
237.4
288.4
57.6
115
50.8
87.5
50.8
115
50.1
90.3
149
102
149
79.2
142
90.3
142
68.0
128
79.2
128
56.7
114
68.0
114
114
100
149
87.0
142
76.5
128
63.2
110
52.1
90.7
131
69.8
102
149
59.3
84.8
117
68.0
96.7
53.1
77.7
133
63.7
98.7
135
53.9
86.3
119
72.3
102
145
59.8
81.6
125
66.2
101
131
56.0
82.5
108
65.1
89.7
127
53.8
73.2
93.6
58.6
81.0
67.0
57.8
1.15
2.30
1.02
1.75
1.02
2.30
1.00
1.81
2.98
2.04
2.98
1.58
2.84
1.81
2.84
1.36
2.56
1.58
2.56
1.13
2.28
1.36
2.28
2.28
2.00
2.98
1.74
2.84
1.53
2.56
1.26
2.20
1.04
1.81
2.62
1.40
2.04
2.98
1.19
1.70
2.34
1.36
1.93
1.06
1.55
2.66
1.27
1.97
2.70
1.08
1.73
2.38
1.45
2.04
2.90
1.20
1.63
2.50
1.32
2.02
2.62
1.12
1.65
2.16
1.30
1.79
2.54
1.08
1.46
1.87
1.17
1.62
1.34
1.16
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
2030
2420
2040
2450
2150
2320
2200
2660
4670
2530
4840
2580
5020
2580
5020
2730
5450
2730
5450
2730
5450
3140
5750
3120
3170
5240
3300
5770
3700
6140
4020
6500
4370
6500
8500
6500
8500
7480
6500
8500
10200
8500
11000
8500
11000
14000
11000
14000
17000
11000
14000
17000
14000
17000
18500
14000
17000
18500
17000
18500
19000
17000
18500
19000
18500
19000
22500
18500
19000
22500
19000
22500
22500
22500
2.65
2.23
3.25
2.71
3.41
3.16
3.67
3.04
1.73
3.56
1.86
3.82
1.96
4.25
2.18
4.44
2.22
4.91
2.46
5.49
2.75
5.28
2.88
5.77
7.10
4.29
8.30
4.75
8.96
5.40
10.11
6.25
11.53
7.75
5.93
9.69
7.41
8.42
11.54
8.82
7.35
10.90
8.42
13.24
10.23
8.04
12.73
10.00
8.24
15.48
12.16
10.02
15.00
12.35
11.35
18.00
14.82
13.62
18.53
17.03
16.58
22.46
20.64
20.10
25.23
24.56
20.74
30.96
30.14
25.45
36.84
31.11
37.33
46.67
50 HP/326T Motor
Factor
Factor
request.
page 42.
information.
© Rexnord 2014
(311-110) 25
Approx. L.S.
Shaft RPM
Drive Size &
Reduction
Exact Ratio
HP Rating
Service Factor
Minimum
Cooling
Required
L.S. Shaft OHL
Capacity
(lb) ➁
Minimum L.S.
Shaft Sprocket
Pitch Dia (in) ➁
1170
950
950
860
860
780
780
700
700
640
640
575
575
520
520
470
470
420
420
380
380
380
350
280
230
190
155
155
125
125
100
100
100
84
84
68
68
68
56
56
45
45
45
37
37
37
30
30
30
25
25
25
25
20
20
20
16.5
16.5
16.5
13.5
13.5
13.5
11.0
11.0
9.0
7.5
2050F_2
2050F_2
2060F_2
2050F_2
2060F_2
2050F_2
2060F_2
2050F_2
2060F_2
2050F_2
2060F_2
2050F_2
2060F_2
2050F_2
2060F_2
2050F_2
2060F_2
2060F_2
2070F_2
2050F_2
2060F_2
2070F_2
2060F_2
2060F_2
2060F_2
2060F_2
2060F_2
2070F_2
2060F_2
2070F_2
2060F_2
2070F_2
2080F_2
2070F_2
2080F_2
2070F_2
2080F_2
2090F_2
2080F_2
2090F_2
2080F_3
2090F_3
2100F_3
2090F_3
2100F_3
2110F_3
2090F_3
2100F_3
2110F_3
2090F_3
2100F_3
2110F_3
2120F_3
2100F_3
2110F_3
2120F_3
2110F_3
2120F_3
2130F_3
2110F_3
2120F_3
2130F_3
2120F_3
2130F_3
2130F_4
2130F_4
1.476
1.822
1.833
2.028
2.027
2.252
2.295
2.504
2.537
2.702
2.827
3.095
3.126
3.283
3.400
3.714
3.759
4.130
3.954
4.512
4.567
4.573
4.998
6.256
7.708
9.269
11.26
11.08
13.72
13.50
17.19
17.33
17.34
20.54
20.98
25.12
25.17
25.66
31.15
31.15
38.88
39.51
40.24
48.23
48.39
46.56
57.53
57.29
56.56
69.86
71.64
68.94
68.05
88.36
86.02
88.15
104.9
107.0
105.9
128.2
128.9
128.5
158.2
154.8
199.0
237.4
115
87.5
172
115
172
90.3
149
102
149
79.2
142
90.3
142
68.0
128
79.2
128
114
164
68.0
114
164
172
149
142
128
110
159
90.7
131
69.8
102
149
84.8
117
68.0
96.7
155
77.7
133
63.7
98.7
135
86.3
119
168
72.3
102
145
59.8
81.6
125
169
66.2
101
131
82.5
108
150
65.1
89.7
127
73.2
93.6
81.0
67.0
1.92
1.46
2.87
1.92
2.87
1.51
2.48
1.70
2.48
1.32
2.37
1.51
2.37
1.13
2.13
1.32
2.13
1.90
2.73
1.13
1.90
2.73
2.87
2.48
2.37
2.13
1.83
2.65
1.51
2.18
1.16
1.70
2.48
1.41
1.95
1.13
1.61
2.58
1.30
2.22
1.06
1.65
2.25
1.44
1.98
2.80
1.20
1.70
2.42
1.00
1.36
2.08
2.82
1.10
1.68
2.18
1.38
1.80
2.50
1.09
1.50
2.12
1.22
1.56
1.35
1.12
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
None
Shaft Fan
None
Shaft Fan
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
2420
2450
4420
2320
4580
2660
4670
2530
4840
2580
5020
2580
5020
2730
5450
2730
5450
5450
6280
3140
5750
6690
5110
5240
5770
6140
6500
8210
6500
8500
6500
8500
7480
8500
10200
8500
11000
14000
11000
14000
11000
14000
17000
14000
17000
18500
14000
17000
18500
14000
17000
18500
19000
17000
18500
19000
18500
19000
22500
18500
19000
22500
19000
22500
22500
22500
2.67
3.25
1.80
3.79
1.92
3.64
2.08
4.27
2.23
4.58
2.35
5.10
2.62
5.33
2.67
5.89
2.95
3.30
2.87
6.34
3.46
2.97
4.23
5.15
5.70
6.48
7.50
5.94
9.30
7.12
11.63
8.89
10.11
10.59
8.82
13.08
10.11
7.94
12.27
9.64
15.27
12.00
9.88
14.59
12.02
11.04
18.00
14.82
13.62
21.60
17.79
16.35
15.92
22.24
20.43
19.89
24.77
24.11
20.36
30.27
29.47
24.89
36.17
30.55
37.33
44.80
60 HP/364T Motor
Factor
Factor
request.
26 (311-110)
© Rexnord 2014
Approx. L.S.
Shaft RPM
Drive Size &
Reduction
Exact Ratio
HP Rating
Service Factor
Minimum
Cooling
Required
L.S. Shaft OHL
Capacity
(lb) ➁
Minimum L.S.
Shaft Sprocket
Pitch Dia (in) ➁
1170
950
860
780
700
640
575
520
520
470
470
420
420
380
380
350
280
230
190
190
155
155
125
125
125
100
100
84
84
84
68
68
56
56
56
45
45
45
37
37
37
30
30
30
25
25
25
20
20
20
16.5
16.5
16.5
13.5
13.5
11.0
9.0
2060F_2
2060F_2
2060F_2
2060F_2
2060F_2
2060F_2
2060F_2
2060F_2
2070F_2
2060F_2
2070F_2
2060F_2
2070F_2
2060F_2
2070F_2
2060F_2
2060F_2
2060F_2
2060F_2
2070F_2
2060F_2
2070F_2
2060F_2
2070F_2
2080F_2
2070F_2
2080F_2
2070F_2
2080F_2
2090F_2
2080F_2
2090F_2
2080F_2
2090F_2
2100F_2
2090F_3
2100F_3
2110F_3
2090F_3
2100F_3
2110F_3
2100F_3
2110F_3
2120F_3
2100F_3
2110F_3
2120F_3
2110F_3
2120F_3
2130F_3
2110F_3
2120F_3
2130F_3
2120F_3
2130F_3
2130F_3
2130F_4
1.548
1.833
2.027
2.295
2.537
2.827
3.126
3.400
3.211
3.759
3.713
4.130
3.954
4.567
4.573
4.998
6.256
7.708
9.269
8.996
11.26
11.08
13.72
13.50
13.67
17.33
17.34
20.54
20.98
21.01
25.17
25.66
31.15
31.15
31.21
39.51
40.24
38.38
48.23
48.39
46.56
57.29
56.56
57.02
71.64
68.94
68.05
86.02
88.15
81.72
104.9
107.0
105.9
128.9
128.5
154.8
199.0
190
172
172
149
149
142
142
128
193
128
193
114
164
114
164
172
149
142
128
193
110
159
90.7
131
189
102
149
84.8
117
188
96.7
155
77.7
133
183
98.7
135
196
86.3
119
168
102
145
202
81.6
125
169
101
131
200
82.5
108
150
89.7
127
93.6
81.0
2.53
2.29
2.29
1.99
1.99
1.89
1.89
1.71
2.57
1.71
2.57
1.52
2.19
1.52
2.19
2.29
1.99
1.89
1.71
2.57
1.47
2.12
1.21
1.75
2.52
1.36
1.99
1.13
1.56
2.51
1.29
2.07
1.04
1.77
2.44
1.32
1.80
2.61
1.15
1.59
2.24
1.36
1.93
2.69
1.09
1.67
2.25
1.35
1.75
2.67
1.10
1.44
2.00
1.20
1.69
1.25
1.08
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
None
Shaft Fan
None
Shaft Fan
Shaft Fan
None
Shaft Fan
None
Shaft Fan
None
Shaft Fan
None
Shaft Fan
None
Shaft Fan
Shaft Fan
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
4360
4420
4580
4670
4840
5020
5020
5450
6280
5450
6280
5450
6280
5750
6690
5110
5240
5770
6140
7570
6500
8210
6500
8500
7480
8500
7480
8500
10200
14000
11000
14000
11000
14000
17000
14000
17000
18500
14000
17000
18500
17000
18500
19000
17000
18500
19000
18500
19000
22500
18500
19000
22500
19000
22500
22500
22500
1.85
2.25
2.40
2.59
2.79
2.94
3.27
3.33
2.89
3.69
3.20
4.13
3.58
4.32
3.72
5.28
6.44
7.12
8.10
6.57
9.38
7.43
11.63
8.89
10.11
11.12
12.63
13.24
11.03
8.04
12.63
9.93
15.34
12.05
9.93
15.00
12.35
12.50
18.24
15.02
13.81
18.53
17.03
16.58
22.24
20.43
19.89
25.54
24.87
21.00
30.96
30.14
25.45
36.84
31.11
38.18
46.67
75 HP/365T Motor
Factor
Factor
request.
© Rexnord 2014
(311-110) 27
100 HP/1750 RPM/405T Motor ➀
Approx. L.S.
Shaft RPM
Drive Size &
Reduction
Exact Ratio
HP Rating
Service Factor
Minimum
Cooling
Required
L.S. Shaft OHL
Capacity
(lb) ➁
Minimum L.S.
Shaft Sprocket
Pitch Dia (in) ➁
1170
950
950
860
860
780
780
700
700
640
640
575
575
520
520
470
470
420
420
380
380
350
350
280
280
230
230
190
190
190
155
155
155
125
125
125
100
100
100
84
84
84
68
68
56
56
56
45
45
45
37
37
37
30
30
30
30
25
25
25
20
20
20
16.5
16.5
13.5
2060F_2
2060F_2
2070F_2
2060F_2
2070F_2
2060F_2
2070F_2
2060F_2
2070F_2
2060F_2
2070F_2
2060F_2
2070F_2
2060F_2
2070F_2
2060F_2
2070F_2
2060F_2
2070F_2
2060F_2
2070F_2
2060F_2
2070F_2
2060F_2
2070F_2
2060F_2
2070F_2
2060F_2
2070F_2
2080F_2
2060F_2
2070F_2
2080F_2
2070F_2
2080F_2
2090F_2
2070F_2
2080F_2
2090F_2
2080F_2
2090F_2
2100F_2
2090F_2
2100F_2
2090F_2
2100F_2
2110F_2
2100F_3
2110F_3
2120F_3
2100F_3
2110F_3
2120F_3
2100F_3
2110F_3
2120F_3
2130F_3
2110F_3
2120F_3
2130F_3
2110F_3
2120F_3
2130F_3
2120F_3
2130F_3
2130F_3
1.548
1.833
1.783
2.027
2.062
2.295
2.197
2.537
2.541
2.827
2.683
3.126
3.103
3.400
3.211
3.759
3.713
4.130
3.954
4.567
4.573
4.998
4.996
6.256
6.155
7.708
7.517
9.269
8.996
8.923
11.26
11.08
11.13
13.50
13.67
13.98
17.33
17.34
16.78
20.98
21.01
21.58
25.66
25.55
31.15
31.21
31.12
40.24
38.38
39.36
48.39
46.56
47.71
57.29
56.56
57.02
57.30
68.94
68.05
68.47
86.02
88.15
81.72
107.0
105.9
128.5
190
172
282
172
282
149
279
149
279
142
239
142
239
128
193
128
193
114
164
114
164
172
255
149
258
142
231
128
193
272
110
159
231
131
189
269
102
149
235
117
188
256
155
226
133
183
263
135
196
269
119
168
239
102
145
202
276
125
169
237
101
131
200
108
150
127
1.90
1.72
2.82
1.72
2.82
1.49
2.79
1.49
2.79
1.42
2.39
1.42
2.39
1.28
1.93
1.28
1.93
1.14
1.64
1.14
1.64
1.72
2.55
1.49
2.58
1.42
2.31
1.28
1.93
2.72
1.10
1.59
2.31
1.31
1.89
2.69
1.02
1.49
2.35
1.17
1.88
2.56
1.55
2.26
1.33
1.83
2.63
1.35
1.96
2.69
1.19
1.68
2.39
1.02
1.45
2.02
2.76
1.25
1.69
2.37
1.01
1.31
2.00
1.08
1.50
1.27
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
4360
4420
4810
4580
4870
4670
5120
4840
5190
5020
5590
5020
5590
5450
6280
5450
6280
5450
6280
5750
6690
5110
6060
5240
6190
5770
6670
6140
7570
5460
6500
8210
6350
8500
7480
11900
8500
8900
13800
10200
14000
15500
14000
16900
14000
17000
18100
17000
18500
19000
17000
18500
19000
17000
18500
19000
22500
18500
19000
22500
18500
19000
22500
19000
22500
22500
2.47
3.00
2.76
3.20
3.01
3.46
3.16
3.72
3.47
3.92
3.52
4.37
3.92
4.45
3.86
4.92
4.27
5.50
4.78
5.77
4.96
7.05
5.94
8.59
7.27
9.49
8.21
10.80
8.76
12.15
12.51
9.90
12.80
11.86
13.48
8.47
14.82
16.84
10.59
14.71
10.71
9.68
13.24
10.96
16.07
13.24
13.39
16.47
16.67
14.74
20.03
18.41
17.92
24.71
22.70
22.11
18.67
27.24
26.53
22.40
34.05
33.16
28.00
40.19
33.94
41.48
100 HP/405T Motor
Factor
Factor
request.
28 (311-110)
© Rexnord 2014
125 HP/1750 RPM/444T Motor ➀
Approx. L.S.
Shaft RPM
Drive Size &
Reduction
Exact Ratio
HP Rating
Service Factor
Minimum
Cooling
Required
L.S. Shaft OHL
Capacity
(lb) ➁
Minimum L.S.
Shaft Sprocket
Pitch Dia (in) ➁
1170
950
950
860
860
780
780
700
700
640
640
575
575
520
520
470
470
420
380
380
350
350
350
280
280
280
230
230
230
190
190
190
155
155
155
125
125
125
125
100
100
100
84
84
68
68
68
56
56
56
56
45
45
45
45
37
37
37
30
30
30
25
25
25
20
20
16.5
13.5
2060F_2
2060F_2
2070F_2
2060F_2
2070F_2
2060F_2
2070F_2
2060F_2
2070F_2
2060F_2
2070F_2
2060F_2
2070F_2
2060F_2
2070F_2
2060F_2
2070F_2
2070F_2
2070F_2
2090F_2
2060F_2
2070F_2
2080F_2
2060F_2
2070F_2
2080F_2
2060F_2
2070F_2
2080F_2
2060F_2
2070F_2
2080F_2
2070F_2
2080F_2
2090F_2
2070F_2
2080F_2
2090F_2
2100F_2
2080F_2
2090F_2
2100F_2
2090F_2
2100F_2
2090F_2
2100F_2
2110F_2
2090F_2
2100F_2
2110F_2
2120F_2
2100F_3
2110F_3
2120F_3
2130F_3
2110F_3
2120F_3
2130F_3
2110F_3
2120F_3
2130F_3
2110F_3
2120F_3
2130F_3
2120F_3
2130F_3
2130F_3
2130F_3
1.548
1.833
1.783
2.027
2.062
2.295
2.197
2.537
2.541
2.827
2.683
3.126
3.103
3.400
3.211
3.759
3.713
3.954
4.573
4.763
4.998
4.996
5.161
6.256
6.155
6.290
7.708
7.517
7.638
9.269
8.996
8.923
11.08
11.13
11.51
13.50
13.67
13.98
14.01
17.34
16.78
17.29
21.01
21.58
25.66
25.55
25.39
31.15
31.21
31.12
31.89
40.24
38.38
39.36
39.60
46.56
47.71
47.26
56.56
57.02
57.30
68.94
68.05
68.47
88.15
81.72
105.9
128.5
190
172
282
172
282
149
279
149
279
142
239
142
239
128
193
128
193
164
164
330
172
255
370
149
258
362
142
231
324
128
193
272
159
231
312
131
189
269
359
149
235
309
188
256
155
226
307
133
183
263
353
135
196
269
332
168
239
322
145
202
276
125
169
237
131
200
150
127
1.52
1.38
2.26
1.38
2.26
1.19
2.23
1.19
2.23
1.14
1.91
1.14
1.91
1.02
1.54
1.02
1.54
1.31
1.31
2.64
1.38
2.04
2.96
1.19
2.06
2.90
1.14
1.85
2.59
1.02
1.54
2.18
1.27
1.85
2.50
1.05
1.51
2.15
2.87
1.19
1.88
2.47
1.50
2.05
1.24
1.81
2.46
1.06
1.46
2.10
2.82
1.08
1.57
2.15
2.66
1.34
1.91
2.58
1.16
1.62
2.21
1.00
1.35
1.90
1.05
1.60
1.20
1.02
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
None
Electric Fan
Shaft Fan
Shaft Fan
Electric Fan
Shaft Fan
Shaft Fan
Electric Fan
Shaft Fan
Shaft Fan
Electric Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Electric Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
None
Shaft Fan
Shaft Fan
None
None
Shaft Fan
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
4360
4420
4810
4580
4870
4670
5120
4840
5190
5020
5590
5020
5590
5450
6280
5450
6280
6280
6690
11500
5110
6060
4720
5240
6190
4370
5770
6670
4800
6140
7570
5460
8210
6350
11000
8500
7480
11900
13400
8900
11900
13400
14000
15500
14000
16900
16800
14000
17000
18100
19000
17000
18500
19000
22500
18500
19000
22500
18500
19000
22500
18500
19000
22500
19000
22500
22500
22500
3.09
3.75
3.45
4.00
3.76
4.32
3.94
4.65
4.34
4.90
4.40
5.46
4.90
5.56
4.82
6.15
5.34
5.97
6.20
3.60
8.81
7.43
9.53
10.73
9.09
12.87
11.87
10.27
13.30
13.50
10.95
15.18
12.38
16.00
9.24
14.82
16.84
10.59
9.40
21.06
13.24
11.75
13.39
12.10
16.54
13.71
15.97
20.09
16.54
16.74
14.80
20.59
20.83
18.42
15.56
23.01
22.40
18.92
28.38
27.63
23.33
34.05
33.16
28.00
41.45
35.00
43.75
53.85
125 HP/444T Motor
1750 rpm 460 Volts, 3 Phase,
60 Hz, NEMA B, 1.15 Service
Factor
1750 rpm 460 Volts, 3 Phase,
Factor
request.
© Rexnord 2014
(311-110) 29
150 HP/1750 RPM/445T Motor ➀
Approx. L.S.
Shaft RPM
Drive Size &
Reduction
Exact Ratio
HP Rating
Service Factor
Minimum
Cooling
Required
L.S. Shaft OHL
Capacity
(lb) ➁
Minimum L.S.
Shaft Sprocket
Pitch Dia (in) ➁
1170
950
950
860
860
780
700
640
575
520
470
420
380
350
350
350
280
280
230
230
190
190
190
155
155
155
155
125
125
125
100
100
100
84
84
84
68
68
68
68
56
56
56
45
45
45
37
37
37
30
30
25
25
20
16.5
2060F_2
2060F_2
2070F_2
2060F_2
2070F_2
2070F_2
2070F_2
2070F_2
2070F_2
2070F_2
2070F_2
2070F_2
2070F_2
2060F_2
2070F_2
2080F_2
2070F_2
2080F_2
2070F_2
2080F_2
2070F_2
2080F_2
2090F_2
2070F_2
2080F_2
2090F_2
2100F_2
2080F_2
2090F_2
2100F_2
2090F_2
2100F_2
2110F_2
2090F_2
2100F_2
2110F_2
2090F_2
2100F_2
2110F_2
2120F_2
2100F_2
2110F_2
2120F_2
2110F_3
2120F_3
2130F_3
2110F_3
2120F_3
2130F_3
2120F_3
2130F_3
2120F_3
2130F_3
2130F_3
2130F_3
1.548
1.833
1.783
2.027
2.062
2.197
2.541
2.683
3.103
3.211
3.713
3.954
4.573
4.998
4.996
5.161
6.155
6.290
7.517
7.638
8.996
8.923
9.257
11.08
11.13
11.51
11.58
13.67
13.98
14.01
16.78
17.29
17.01
21.01
21.58
20.76
25.66
25.55
25.39
25.91
31.21
31.12
31.89
38.38
39.36
39.60
46.56
47.71
47.26
57.02
57.30
68.05
68.47
81.72
105.9
190
172
282
172
282
279
279
239
239
193
193
164
164
172
255
370
258
362
231
324
193
272
386
159
231
312
411
189
269
359
235
309
433
188
256
401
155
226
307
439
183
263
353
196
269
332
168
239
322
202
276
169
237
200
150
1.27
1.15
1.88
1.15
1.88
1.86
1.86
1.59
1.59
1.29
1.29
1.09
1.09
1.15
1.70
2.47
1.72
2.41
1.54
2.16
1.29
1.81
2.57
1.06
1.54
2.08
2.74
1.26
1.79
2.39
1.57
2.06
2.89
1.25
1.71
2.67
1.03
1.51
2.05
2.93
1.22
1.75
2.35
1.31
1.79
2.21
1.12
1.59
2.15
1.35
1.84
1.13
1.58
1.33
1.00
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
Electric Fan
Electric Fan
Shaft Fan
Electric Fan
Shaft Fan
Electric Fan
Shaft Fan
Electric Fan
Shaft Fan
Shaft Fan
Electric Fan
Shaft Fan
Shaft Fan
None
Electric Fan
Shaft Fan
Shaft Fan
Shaft Fan
Shaft Fan
None
Shaft Fan
Shaft Fan
None
Shaft Fan
Shaft Fan
None
None
Shaft Fan
None
None
Shaft Fan
None
None
Shaft Fan
None
None
None
None
None
None
None
None
4360
4420
4810
4580
4870
5120
5190
5590
5590
6280
6280
6280
6690
5110
6060
4720
6190
4370
6670
5150
7570
5460
10300
8210
6350
11000
12600
7480
11900
13400
11900
13400
13300
14000
15500
12400
14000
16900
16800
17500
17000
18100
19000
18500
19000
22500
18500
19000
22500
19000
22500
19000
22500
22500
22500
3.71
4.50
4.14
4.80
4.51
4.73
5.20
5.28
5.88
5.79
6.40
7.17
7.43
10.57
8.91
11.44
10.90
15.45
12.32
15.96
13.14
18.22
9.66
14.85
19.20
11.09
9.68
20.21
12.71
11.28
15.88
14.10
20.86
16.07
14.52
18.15
19.85
16.45
19.17
15.88
19.85
20.09
17.76
25.00
22.11
18.67
27.61
26.88
22.70
33.16
28.00
39.79
33.60
42.00
50.91
150 HP/445T Motor
1750 rpm 460 Volts, 3 Phase,
60 Hz, NEMA B, 1.15 Service
Factor
Factor
request.
30 (311-110)
© Rexnord 2014
200 HP/1750 RPM ➀
Approx. L.S.
Shaft RPM
Drive Size &
Reduction
Exact Ratio
HP Rating
Service Factor
Minimum
Cooling
Required
L.S. Shaft OHL
Capacity
(lb) ➁
Minimum L.S.
Shaft Sprocket
Pitch Dia (in) ➁
950
2070F_2
1.783
282
1.41
Electric Fan
4810
5.51
860
2070F_2
2.062
282
1.41
Electric Fan
4870
6.02
780
2070F_2
2.197
279
1.40
Electric Fan
5120
6.31
700
2070F_2
2.541
279
1.40
Electric Fan
5190
6.94
640
2070F_2
2.683
239
1.20
Electric Fan
5590
7.04
575
2070F_2
3.103
239
1.20
Electric Fan
5590
7.84
350
2070F_2
4.996
255
1.28
Electric Fan
6060
11.88
350
2080F_2
5.161
370
1.85
Electric Fan
4720
15.25
350
2090F_2
5.050
599
3.00
Shaft Fan
8620
8.35
280
2070F_2
6.155
258
1.29
Electric Fan
6190
14.54
280
2080F_2
6.290
362
1.81
Electric Fan
4370
20.59
280
2090F_2
6.050
538
2.69
Shaft Fan
8870
10.15
230
2070F_2
7.517
231
1.16
Electric Fan
6670
16.43
230
2080F_2
7.638
324
1.62
Electric Fan
5150
21.27
230
2090F_2
7.581
451
2.25
Shaft Fan
8870
12.35
190
2080F_2
8.923
272
1.36
Electric Fan
5460
24.29
190
2090F_2
9.257
386
1.93
Shaft Fan
10300
12.88
190
2100F_2
9.218
497
2.48
Shaft Fan
11900
11.15
155
2080F_2
11.13
231
1.16
Electric Fan
6350
25.60
155
2090F_2
11.51
312
1.56
Shaft Fan
11000
14.78
155
2100F_2
11.58
411
2.06
Shaft Fan
12600
12.90
125
2090F_2
13.98
269
1.35
Shaft Fan
11900
16.94
125
2100F_2
14.01
359
1.80
Shaft Fan
13400
15.04
125
2110F_2
13.94
519
2.60
Shaft Fan
9060
22.25
100
2090F_2
16.78
235
1.18
Shaft Fan
11900
21.18
100
2100F_2
17.29
309
1.55
Shaft Fan
13400
18.81
100
2110F_2
17.01
433
2.17
Shaft Fan
13300
27.81
84
2100F_2
21.58
256
1.28
Shaft Fan
15500
19.35
84
2110F_2
20.76
401
2.00
Shaft Fan
12400
24.19
84
2120F_2
21.12
510
2.55
None
16100
18.63
68
2100F_2
25.55
226
1.13
Shaft Fan
16900
21.93
68
2110F_2
25.39
307
1.54
Shaft Fan
16800
25.56
68
2120F_2
25.91
439
2.20
None
17500
21.18
68
2130F_2
25.36
582
2.91
None
22500
16.47
56
2110F_2
31.12
263
1.32
Shaft Fan
18100
26.79
56
2120F_2
31.89
353
1.77
None
19000
23.68
56
2130F_2
30.89
477
2.38
None
22500
20.00
45
2120F_3
39.36
269
1.35
Shaft Fan
19000
29.47
45
2130F_3
39.60
332
1.66
Shaft Fan
22500
24.89
37
2120F_3
47.71
239
1.20
Shaft Fan
19000
35.85
37
2130F_3
47.26
322
1.61
Shaft Fan
22500
30.27
30
2120F_3
57.02
202
1.01
Shaft Fan
19000
44.21
30
2130F_3
57.30
276
1.38
Shaft Fan
22500
37.33
25
2130F_3
68.47
237
1.19
Shaft Fan
22500
44.80
20
2130F_3
81.72
200
1.00
Shaft Fan
22500
56.00
200 HP Motor
60 Hz, NEMA B, 445T, 1.15 Service
Factor
60 Hz, NEMA B, 447T 1.15 Service
Factor
request.
© Rexnord 2014
(311-110) 31
How to Select/Horsepower & Torque Ratings Table Method
Selection Information
The Quick Selection Method may be used in place of the Horsepower & Torque Ratings
Table Method if the application meets the following guidelines:
• 1750 rpm input
• Standard ratios for double, triple or quadruple reductions
6. Check the thermal rating on page 45. Since the thermal hp capacity of the 2040F2
exceeds the required hp (13 hp) at both 1750 and 1430 rpm, no additional cooling is
required. (NOTE: for actual thermal capacity, interpolate between values at 1750 and
1430 rpm).
7. Refer to page 48 if a chain drive is required between the gear drive low-speed shaft
and the conveyor. The drive overhung load capacity must be checked.
NOTE: If you have an unusual application involving any of the following conditions, refer
to pages 6 and 7.
• Excessive Overloads
8. Dimensions and weights for this drive are listed on page 58.
• Reversing Service
How to Select by Torque
• Brake-Equipped Applications
Simply follow the steps outlined in the horsepower method, substituting torque values
for horsepower.
• Oversized Prime Movers
• Multi-Speed or Variable Speed Applications
• Excessive Ambient Temperatures
9. Place the order for the gear drive per instructions on page 14.
To check thermal capacity, convert the actual required torque to horsepower and check
against the thermal rating. To convert, use the torque (lb-in) and speed (rpm) at lowspeed shaft of the drive in the following formula:
• Thermal Rating Application Factors
HP =
• Excessive Overhung Loads or Thrust Loads
torque x output speed
63,000
• Product Modifications
Example:
• Non-Standard Motors or Prime Movers
A drive to power a traveling water intake screen, 24 hours per day, is to deliver 30,000
pound-inches output torque when output shaft operates at 5 rpm. Source of power is a
3 hp, 1750 rpm motor.
• Non-Standard Motor Bracket Applications
• Non-Horizontal Mounting Positions
How to Select by Horsepower
1. From Service Factor table, page 9 — traveling water screen requires 1.25 service
factor for 24 hour service.
1. Determine Service Factor or Load Classification Factor — See pages 8 and 9
or pages 10 and 11.
2. Equivalent torque — 1.25 x 30,000 = 37,500 pound-inches.
2. Calculate Equivalent Horsepower — Multiply the actual horsepower to be
transmitted by the service factor.
4. Refer to the output Quadruple Reduction — Torque selection table on page 41.
Closest standard ratio is 357.5. In the 1750 high-speed shaft section, opposite
357.5 ratio, trace right to 45.2 (x 1000) (nearest torque exceeding equivalent torque)
and read drive size 2060 at top of column.
3. Determine Drive Input Speed, Output Speed and Ratio.
4. Determine Drive Size — Select the nearest standard ratio from the Horsepower &
Ratings Table starting on page 33. Opposite the high-speed shaft rpm, and the
desired ratio and output speed, trace right to a horsepower capacity equal to or in
excess of the equivalent horsepower calculated in Step 2. Read the drive size at the
top of the column. When the required input speed falls between two tabulated input
speeds of a drive with the same number of gear reductions, interpolate to determine
gear drive rating.
5. Select Drive Configuration — Type FC or FZ. See pages 58-61.
6. Check Thermal Horsepower Ratings — See page 42 for instructions.
7. Check Overhung Loads and Thrust Capacity —See pages 48-55 for
instructions.
8. Check Gear Drive Dimensions — pages 58-61.
3. Input speed is 1750 rpm, output is 5 rpm, resulting in a required ratio of 350:1.
5. For this example we will assume that a Type FC horizontal concentric shaft drive is
desired.
6. Check thermal rating, page 46. Convert torque to horsepower. The thermal rating
is 18.6 for a size 2060F4 which exceeds the application hp is satisfactory.
30,000 x 5
63,000
= 2.38 HP
7. Refer to page 48 to check overhung load capacity if a chain drive is required on the
low-speed shaft.
8. Dimensions and weights for this drive are given on page 60.
9. Place the order for the drive per instructions on page 14.
9. Place the Order — See page 14 for How to Order.
Example:
Application: Belt conveyor, uniformly-fed, requires 13 hp at the head shaft.
Duty Cycle: 10 hours per day.
Driver: 17 hp multi-cylinder engine, 1600 rpm, coupling connected to drive.
Output: 115 rpm.
1. From Service Factor table, page 9 — motor-driven, uniformly-fed, belt conveyor,
10 hour service requires 1.25 service factor. From Table 2, page 8, convert this
service factor for motor drive to 1.50 for engine drive.
2. Equivalent horsepower — 1.50 x 13 = 19.5 hp.
3. Input speed is 1600 rpm, output is 115 rpm, resulting in a required ratio of 13.9:1.
4. Refer to the Double Reduction — Horsepower selection table on page 34 for ratios
1.50 through 31.39.
A. Since 1600 rpm input is not listed, proportion the equivalent horsepower to the
nearest published input speed: 1750 ÷ 1600 x 19.5 = 21.3 hp. In the 1750 highspeed shaft section opposite 13.95 ratio, trace right to 28.1 (nearest hp exceeding
equivalent hp) and read drive size 2040 at the top of column.
5. For this example we will assume that a Type FC horizontal concentric shaft drive is
desired.
32 (311-110)
© Rexnord 2014
Horsepower & Torque Ratings
Double Reduction
High-Speed
Shaft
RPM
3500
2900
2400
Nominal
Ratios
±4%
Approx.
L.S. Shaft
RPM
2040
1.50
1.84
2.03
2.25
2.49
2.76
3.05
3.38
3.74
4.13
4.57
5.06
6.20
7.59
9.30
11.39
13.95
17.09
20.93
25.63
31.39
1.50
1.84
2.03
2.25
2.49
2.76
3.05
3.38
3.74
4.13
4.57
5.06
6.20
7.59
9.30
11.39
13.95
17.09
20.93
25.63
31.39
1.50
1.84
2.03
2.25
2.49
2.76
3.05
3.38
3.74
4.13
4.57
5.06
6.20
7.59
9.30
11.39
13.95
17.09
20.93
25.63
31.39
2340
1900
1720
1560
1400
1280
1150
1040
940
840
760
700
560
460
380
310
250
200
168
136
112
1900
1560
1400
1280
1150
1040
940
840
760
700
620
560
460
380
310
250
200
168
136
112
90
1560
1280
1150
1040
940
840
760
700
620
560
510
460
380
310
250
200
168
136
112
90
74
93.5
82.5
82.5
81.3
73.7
64.7
64.7
56.4
56.4
48.0
48.0
93.5
82.5
72.7
62.0
54.0
45.7
39.7
35.3
23.8
20.8
82.0
72.3
72.3
71.3
64.6
56.7
56.7
49.4
49.4
42.0
42.0
82.0
72.3
63.7
54.4
47.4
40.1
34.8
30.9
20.8
18.2
71.8
63.3
63.3
62.4
56.6
49.7
49.7
43.3
43.3
36.8
36.8
71.8
63.3
55.8
47.6
41.5
35.1
30.5
26.1
18.2
16.0
2050
Horsepower ➀
Drive Size
2060
2070
2080
2090
2040
187
142
187
147
166
129
147
114
129
98.2
114
186
163
141
126
110
96.5
82.7
68.1
49.9
42.8
164
125
164
129
145
113
129
99.6
113
86.1
99.6
163
142
124
110
96.6
84.6
69.6
56.6
43.7
37.6
144
109
144
113
127
98.8
113
87.2
98.8
75.4
87.2
143
125
109
96.5
84.7
71.0
57.8
47.0
38.3
32.2
308
280
280
243
243
231
231
209
209
185
185
280
243
231
209
185
160
131
111
97.0
77.4
270
245
245
213
213
203
203
183
183
162
162
245
213
203
183
162
140
111
97.5
80.7
65.5
236
215
215
186
186
178
178
160
160
142
142
215
186
178
160
142
123
93.4
81.0
67.0
54.3
645
602
602
588
588
526
526
443
443
434
434
602
588
526
443
394
338
272
225
184
148
566
527
527
515
515
461
461
388
388
380
380
527
515
461
388
345
296
238
186
154
125
496
462
462
451
451
404
404
340
340
319
319
462
451
404
340
303
257
198
157
130
105
973
880
973
763
880
666
763
603
666
516
603
973
874
732
627
506
437
382
305
253
224
853
771
853
669
771
584
669
528
584
453
528
853
767
642
550
444
383
335
268
221
196
747
676
747
586
676
511
586
452
511
385
452
747
671
562
481
389
336
294
234
194
172
2.47
2.70
3.05
3.21
3.28
3.17
3.58
3.33
3.76
3.56
4.02
8.29
9.09
9.64
10.2
10.7
11.4
12.0
12.6
10.8
11.0
2.61
2.86
3.23
3.39
3.47
3.35
3.79
3.52
3.98
3.76
4.25
8.78
9.62
10.2
10.8
11.4
12.1
12.7
13.3
11.4
11.6
2.76
3.02
3.42
3.59
3.68
3.55
4.01
3.73
4.21
3.98
4.50
9.29
10.2
10.8
11.4
12.0
12.8
13.5
13.6
12.1
12.4
–
459
459
454
454
412
412
375
375
325
322
415
419
381
337
302
256
199
166
129
102
–
402
402
398
398
361
361
320
320
269
269
364
368
334
295
259
214
165
138
109
85.6
–
352
352
349
349
316
316
265
265
223
223
319
322
293
259
216
178
138
116
91.5
71.7
2050
Torque ➁ ➂
Drive Size
2060
2070
2080
2090
4.97
4.66
6.83
5.96
7.48
6.27
8.19
6.74
8.62
7.07
9.26
16.7
18.0
19.3
20.7
21.9
23.5
24.8
25.2
22.7
23.2
5.26
4.95
7.23
6.31
7.89
6.63
8.67
7.10
9.12
7.48
9.76
17.6
19.0
20.5
21.8
23.2
24.8
25.2
25.3
24.0
24.6
5.58
5.21
7.67
6.68
8.35
7.01
9.18
7.51
9.63
7.92
10.3
18.7
20.2
21.7
23.1
24.6
25.2
25.3
25.4
25.4
25.5
8.58
9.24
10.2
10.0
11.1
11.8
13.0
12.8
14.1
13.8
15.2
25.2
27.4
32.1
34.9
37.5
39.5
40.5
42.2
44.7
44.1
9.08
9.76
10.8
10.6
11.7
12.5
13.8
13.5
14.9
14.5
16.1
26.6
28.9
34.0
36.8
39.6
41.7
41.5
44.7
44.9
45.1
9.59
10.3
11.4
11.2
12.4
13.2
14.6
14.3
15.8
15.4
17.0
28.2
30.5
36.0
38.9
42.0
44.3
42.2
44.9
45.1
45.2
18.1
20.4
22.3
24.3
26.5
26.4
28.8
26.0
28.3
31.8
34.6
55.9
66.6
72.3
71.2
78.9
83.2
84.9
85.0
83.4
83.0
19.2
21.6
23.5
25.7
28.0
28.0
30.5
27.5
29.9
33.6
36.6
59.1
70.4
76.5
75.2
83.4
87.9
89.6
84.8
84.2
84.6
20.3
22.9
24.9
27.2
29.6
29.6
32.2
29.1
31.7
34.1
37.1
62.6
74.5
81.0
79.6
88.5
92.2
90.1
86.5
85.9
85.9
26.3
28.5
36.6
31.0
39.7
33.0
43.1
37.2
45.9
38.7
51.7
88.4
95.2
99.9
104
105
110
115
115
117
126
27.9
30.2
38.7
32.8
41.9
35.0
45.6
39.3
48.6
41.0
54.6
93.6
101
106
111
111
116
122
122
123
133
29.5
32.0
41.0
34.7
44.4
37.0
48.3
40.7
51.4
42.1
56.5
99.0
107
112
117
118
123
129
129
131
141
–
14.7
17.0
18.0
20.8
19.9
23.0
21.7
25.1
23.1
26.5
37.3
46.4
51.6
54.6
60.2
62.2
62.1
61.4
58.3
57.1
–
15.6
18.0
19.0
22.0
21.0
24.3
22.3
25.8
23.1
26.7
39.5
49.2
54.5
57.7
62.3
62.8
62.1
61.6
59.5
57.8
–
16.5
19.1
20.1
23.3
22.3
25.7
22.3
25.8
23.1
26.8
41.8
52.0
57.8
61.2
62.8
63.1
62.8
62.5
60.3
58.5
➀ When selecting gear drives by HP method, check required HP (without service factor) against the application-adjusted thermal HP ratings. For ratings at speeds higher than 3500
RPM, refer to Factory.
➁ When selecting gear drives by torque method, convert required torque (without service factor) to HP and check against the application-adjusted thermal HP ratings. For ratings at
speeds higher than 3500 RPM, refer to Factory.
➂ Torque is in lb-in at low-speed shaft — multiply values listed by 1000.
© Rexnord 2014
(311-110) 33
Double Reduction — Horsepower
High-Speed
Shaft
RPM
1750
1430
1170
Nominal
Ratios
±4%
Approx.
L.S. Shaft
RPM
2040
2050
2060
2070
2080
2090
2100
2110
2120
2130
1.50
1.84
2.03
2.25
2.49
2.76
3.05
3.38
3.74
4.13
4.57
5.06
6.20
7.59
9.30
11.39
13.95
17.09
20.93
25.63
31.39
1.50
1.84
2.03
2.25
2.49
2.76
3.05
3.38
3.74
4.13
4.57
5.06
6.20
7.59
9.30
11.39
13.95
17.09
20.93
25.63
31.39
1.50
1.84
2.03
2.25
2.49
2.76
3.05
3.38
3.74
4.13
4.57
5.06
6.20
7.59
9.30
11.39
13.95
17.09
20.93
25.63
31.39
1170
950
860
780
700
640
575
520
470
420
380
350
280
230
190
155
125
100
84
68
56
950
780
700
640
575
520
470
420
380
350
310
280
230
190
155
125
100
84
68
56
45
780
640
575
520
470
420
380
350
310
280
255
230
190
155
125
100
84
68
56
45
37
57.6
50.8
50.8
50.1
45.4
39.8
39.8
34.7
34.7
28.5
28.5
57.6
50.8
44.7
38.2
33.3
28.1
23.3
19.3
14.6
12.8
50.0
44.1
44.1
43.5
39.4
33.9
33.9
29.5
29.5
23.5
23.5
50.0
44.1
38.8
33.1
28.9
23.3
19.2
15.9
12.7
10.9
43.0
38.3
38.3
37.8
34.2
28.1
28.1
24.4
24.4
19.4
19.4
43.0
38.3
33.7
28.1
23.9
19.1
15.7
13.1
10.5
8.96
115
87.5
115
90.3
102
79.2
90.3
68.0
79.2
56.7
68.0
114
100
87.0
76.5
63.2
52.1
42.3
34.4
28.0
23.5
98.5
76.0
98.5
75.2
88.1
67.8
75.2
56.4
67.8
46.9
56.4
98.5
86.8
75.1
62.8
51.9
42.7
34.7
28.1
22.9
19.2
82.2
66.0
82.2
62.4
73.3
56.2
62.4
46.6
56.2
38.7
46.5
82.2
73.3
61.7
51.6
42.6
35.0
28.4
23.1
18.8
15.8
190
172
172
149
149
142
142
128
128
114
114
172
149
142
128
110
90.7
69.8
59.3
49.0
39.7
157
149
149
130
130
124
124
111
111
96.1
96.1
149
130
124
109
90.4
74.4
57.7
48.6
40.1
32.4
129
130
130
113
113
107
107
94.1
94.1
79.6
79.6
130
113
107
89.8
74.2
61.0
47.7
39.8
32.8
26.5
–
282
282
279
279
239
239
193
193
164
164
255
258
231
193
159
131
102
84.8
68.0
53.1
–
245
245
228
228
195
195
160
160
136
136
222
224
190
160
130
107
84.0
69.3
56.1
43.7
–
213
213
188
188
163
163
133
133
113
113
193
188
156
131
107
88.1
68.9
56.7
46.2
36.0
397
370
370
362
362
324
324
272
272
233
233
370
362
324
272
231
189
149
117
96.7
77.7
345
322
322
314
314
281
281
237
237
194
194
322
314
274
235
190
155
123
96.9
79.8
64.0
287
279
279
273
273
244
237
206
205
161
161
279
272
225
194
156
127
101
80.1
65.9
52.7
599
542
599
470
542
410
470
330
410
281
330
599
538
451
386
312
269
235
188
155
133
520
470
520
408
470
356
408
269
356
230
269
520
467
391
335
269
230
199
161
132
109
442
396
442
341
396
295
341
224
295
188
224
442
396
340
291
224
188
165
132
108
89.4
–
–
–
–
–
–
–
–
–
–
–
762
647
568
497
411
359
309
256
226
183
–
–
–
–
–
–
–
–
–
–
–
661
562
493
432
357
312
265
213
186
152
–
–
–
–
–
–
–
–
–
–
–
575
488
428
375
310
271
221
177
152
125
–
–
–
–
–
–
–
–
–
–
–
–
–
–
750
627
519
433
401
307
263
–
–
–
–
–
–
–
–
–
–
–
–
–
–
651
513
424
357
334
255
218
–
–
–
–
–
–
–
–
–
–
–
–
–
–
558
420
352
298
277
211
180
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
869
753
629
510
439
353
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
754
635
514
423
360
293
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
617
519
421
352
296
241
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
1050
927
794
635
582
477
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
912
757
649
520
497
397
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
748
620
533
434
414
329
Drive Size ➀
➀ When selecting gear drives by HP method, check required HP (without service factor) against the application-adjusted thermal HP ratings. For ratings at speeds higher than
3500 RPM, refer to Factory.
34 (311-110)
© Rexnord 2014
Double Reduction — Torque
High-Speed
Shaft
RPM
1750
1430
1170
Nominal
Ratios
±4%
Approx.
L.S. Shaft
RPM
2040
2050
2060
2070
2080
2090
2100
2110
2120
2130
1.50
1.84
2.03
2.25
2.49
2.76
3.05
3.38
3.74
4.13
4.57
5.06
6.20
7.59
9.30
11.39
13.95
17.09
20.93
25.63
31.39
1.50
1.84
2.03
2.25
2.49
2.76
3.05
3.38
3.74
4.13
4.57
5.06
6.20
7.59
9.30
11.39
13.95
17.09
20.93
25.63
31.39
1.50
1.84
2.03
2.25
2.49
2.76
3.05
3.38
3.74
4.13
4.57
5.06
6.20
7.59
9.30
11.39
13.95
17.09
20.93
25.63
31.39
1170
950
860
780
700
640
575
520
470
420
380
350
280
230
190
155
125
100
84
68
56
950
780
700
640
575
520
470
420
380
350
310
280
230
190
155
125
100
84
68
56
45
780
640
575
520
470
420
380
350
310
280
255
230
190
155
125
100
84
68
56
45
37
3.04
3.33
3.76
3.95
4.05
3.90
4.41
4.10
4.63
4.23
4.78
10.2
11.2
11.9
12.6
13.2
14.0
14.1
13.8
13.3
13.6
3.23
3.54
4.00
4.20
4.30
4.07
4.59
4.26
4.82
4.27
4.82
10.9
11.9
12.6
13.4
14.0
14.2
14.2
13.9
14.1
14.1
3.39
3.75
4.24
4.46
4.56
4.12
4.65
4.31
4.87
4.30
4.86
11.4
12.6
13.4
13.9
14.2
14.3
14.2
14.0
14.3
14.2
6.11
5.74
8.40
7.32
9.19
7.71
10.1
8.04
10.6
8.17
11.0
20.4
22.1
23.8
25.1
25.2
25.3
25.4
25.5
25.5
25.5
6.40
6.10
8.80
7.46
9.72
8.07
10.3
8.16
11.1
8.27
11.2
21.6
23.5
25.1
25.2
25.3
25.4
25.5
25.5
25.5
25.5
6.53
6.47
8.98
7.57
9.88
8.18
10.4
8.24
11.2
8.34
11.3
22.0
24.3
25.2
25.3
25.4
25.4
25.5
25.6
25.6
25.7
10.6
11.4
12.6
12.3
13.6
14.5
16.0
15.7
17.3
17.0
18.7
31.0
33.6
39.4
42.7
44.6
44.8
43.2
45.1
45.2
45.3
10.7
12.0
13.3
13.1
14.5
15.4
17.1
16.6
18.4
17.5
19.3
32.8
35.8
42.1
44.5
44.8
45.0
43.7
45.2
45.3
45.2
10.8
12.8
14.2
14.0
15.4
16.3
18.0
17.2
19.0
17.7
19.6
35.0
38.1
44.4
44.8
45.0
45.1
44.2
45.3
45.3
45.2
–
18.1
20.9
22.1
25.5
23.1
26.7
22.3
25.8
23.3
27.0
45.9
57.2
62.5
62.5
63.4
63.7
63.6
62.7
61.5
59.4
–
19.2
22.3
22.1
25.5
23.1
26.7
22.6
26.2
23.7
27.4
48.9
60.7
62.9
63.4
63.4
63.6
64.1
62.7
62.1
59.8
–
20.5
23.7
22.2
25.7
23.6
27.2
23.0
26.6
24.1
27.8
51.9
62.3
63.1
63.5
63.8
64.0
64.3
62.7
62.5
60.2
22.3
25.1
27.4
30.0
32.6
32.6
35.5
31.9
34.8
34.1
37.2
68.7
82.0
89.1
87.4
92.5
93.0
93.0
88.4
87.6
87.1
23.7
26.8
29.1
31.8
34.6
34.6
37.6
34.1
37.1
34.8
37.9
73.2
87.0
92.2
92.4
93.1
93.4
94.0
89.6
88.5
87.8
24.1
28.3
30.9
33.8
36.8
36.7
38.8
36.2
39.2
35.3
38.4
77.5
92.1
92.5
93.2
93.5
93.5
94.3
90.5
89.3
88.4
32.4
35.2
45.1
38.2
48.8
40.7
53.1
40.7
56.5
42.1
56.6
109
117
123
129
129
135
142
142
143
149
34.4
37.3
47.9
40.6
51.8
43.2
56.4
40.6
60.1
42.2
56.5
116
124
131
137
136
142
147
149
149
150
35.8
38.4
49.7
41.4
53.4
43.8
57.6
41.3
60.8
42.2
57.5
120
129
139
145
139
142
149
149
149
150
–
–
–
–
–
–
–
–
–
–
–
139
149
156
165
171
181
192
199
208
206
–
–
–
–
–
–
–
–
–
–
–
148
159
166
175
182
193
202
202
209
209
–
–
–
–
–
–
–
–
–
–
–
157
169
176
186
193
204
206
206
209
210
–
–
–
–
–
–
–
–
–
–
–
–
–
–
256
259
260
265
300
281
295
–
–
–
–
–
–
–
–
–
–
–
–
–
–
271
259
260
268
306
285
299
–
–
–
–
–
–
–
–
–
–
–
–
–
–
284
259
264
273
310
288
302
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
361
380
393
388
409
405
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
383
392
393
394
411
412
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
384
391
394
400
413
414
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
448
481
490
486
531
531
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
476
481
490
487
555
540
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
477
482
492
497
565
547
Drive Size ➀ ➁
➀ When selecting gear drives by torque method, convert required torque (without service factor) to HP and check against the application-adjusted thermal HP ratings. For ratings at
➁ Torque is in lb-in at low-speed shaft — multiply values listed by 1000.
© Rexnord 2014
(311-110) 35
Double Reduction — Horsepower
High-Speed
Shaft
RPM
870
720
580
Nominal
Ratios
±4%
Approx.
L.S. Shaft
RPM
2040
2050
2060
2070
2080
2090
2100
2110
2120
2130
1.50
1.84
2.03
2.25
2.49
2.76
3.05
3.38
3.74
4.13
4.57
5.06
6.20
7.59
9.30
11.39
13.95
17.09
20.93
25.63
31.39
1.50
1.84
2.03
2.25
2.49
2.76
3.05
3.38
3.74
4.13
4.57
5.06
6.20
7.59
9.30
11.39
13.95
17.09
20.93
25.63
31.39
1.50
1.84
2.03
2.25
2.49
2.76
3.05
3.38
3.74
4.13
4.57
5.06
6.20
7.59
9.30
11.39
13.95
17.09
20.93
25.63
31.39
580
470
430
390
350
320
290
260
235
210
190
175
140
115
95
77
62
50
42
34
28
470
390
350
320
290
260
235
210
190
175
155
140
115
95
77
62
50
42
34
28
22
390
320
290
260
235
210
190
175
155
140
130
115
95
77
62
50
42
34
28
22
18
32.6
28.9
28.9
29.5
27.8
21.1
21.1
18.3
18.3
14.5
14.5
32.6
29.1
26.6
21.1
17.8
14.2
11.7
9.80
7.83
6.69
27.2
24.1
24.1
24.5
24.1
17.6
17.6
15.3
15.3
12.1
12.1
27.2
24.2
22.1
17.6
14.8
11.8
9.71
8.14
6.49
5.55
22.1
19.6
19.6
19.8
19.5
14.3
14.3
12.3
12.3
9.77
9.77
22.1
19.7
17.8
14.3
11.9
9.51
7.83
6.58
5.23
4.48
62.4
53.7
62.4
47.2
55.6
42.4
47.2
35.1
42.1
29.1
34.8
62.4
55.6
46.1
38.5
31.7
26.1
21.2
17.2
14.0
11.7
52.2
46.4
52.2
39.4
46.4
35.3
39.4
29.2
35.0
24.2
28.9
52.2
46.3
38.2
31.9
26.3
21.6
17.6
14.2
11.6
9.71
42.5
37.7
42.5
31.9
37.7
28.7
31.9
23.7
28.3
19.6
23.3
42.5
37.3
30.9
25.8
21.2
17.4
14.2
11.5
9.34
7.83
98.2
106
106
91.6
91.6
82.9
82.9
71.2
71.2
60.1
60.0
106
91.6
80.5
67.1
55.4
45.5
35.8
29.6
24.4
19.7
82.4
92.4
92.4
80.2
80.2
69.2
69.2
59.4
59.4
50.1
49.8
92.4
80.2
66.8
55.7
45.9
37.7
29.8
24.5
20.2
16.3
67.2
77.6
77.6
68.9
68.9
56.3
56.3
48.3
48.3
40.7
40.3
77.6
66.3
53.9
44.9
37.0
30.4
24.1
19.7
16.3
13.2
–
173
173
143
143
124
124
101
101
85.5
85.5
151
142
117
98.2
80.0
65.8
51.4
42.2
34.7
27.0
–
149
149
120
120
104
104
84.3
84.3
71.4
71.4
125
118
97.2
81.5
66.3
54.5
42.6
34.9
28.8
22.4
–
121
121
98.0
98.0
84.3
84.3
68.6
68.6
58.0
58.0
101
95.7
78.6
65.8
53.5
44.0
34.3
28.1
23.3
18.1
213
212
212
212
212
187
179
164
154
122
122
212
204
169
145
116
95.0
75.1
60.2
49.4
39.5
177
176
176
178
178
157
149
137
128
102
102
176
169
140
120
96.6
78.8
62.3
50.1
41.1
32.8
142
141
141
145
145
128
121
112
104
82.8
82.8
141
137
113
97.1
78.0
63.6
50.2
40.6
33.3
26.5
329
296
329
258
296
225
258
171
225
140
171
329
296
258
221
171
140
123
98.4
80.7
66.6
276
250
276
217
250
189
217
143
189
116
143
276
250
217
183
143
116
102
81.6
66.9
55.2
226
204
226
177
204
154
177
116
154
93.1
116
226
204
177
148
116
93.1
82.3
65.8
54.0
44.5
–
–
–
–
–
–
–
–
–
–
–
467
397
348
305
248
206
167
133
114
93.1
–
–
–
–
–
–
–
–
–
–
–
405
347
305
258
206
171
139
111
94.1
77.1
–
–
–
–
–
–
–
–
–
–
–
333
285
250
208
166
138
112
89.7
75.9
62.2
–
–
–
–
–
–
–
–
–
–
–
–
–
–
421
321
268
226
207
159
135
–
–
–
–
–
–
–
–
–
–
–
–
–
–
354
269
224
189
172
133
113
–
–
–
–
–
–
–
–
–
–
–
–
–
–
290
220
183
154
139
108
91.3
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
466
397
313
267
221
180
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
392
333
259
223
183
149
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
320
272
209
181
148
120
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
559
470
407
330
313
249
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
471
395
342
276
262
207
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
386
323
279
225
213
168
Drive Size ➀
36 (311-110)
© Rexnord 2014
Double Reduction — Torque
High-Speed
Shaft
RPM
870
720
580
Nominal
Ratios
±4%
Approx.
L.S. Shaft
RPM
2040
2050
2060
2070
2080
2090
2100
2110
2120
2130
1.50
1.84
2.03
2.25
2.49
2.76
3.05
3.38
3.74
4.13
4.57
5.06
6.20
7.59
9.30
11.39
13.95
17.09
20.93
25.63
31.39
1.50
1.84
2.03
2.25
2.49
2.76
3.05
3.38
3.74
4.13
4.57
5.06
6.20
7.59
9.30
11.39
13.95
17.09
20.93
25.63
31.39
1.50
1.84
2.03
2.25
2.49
2.76
3.05
3.38
3.74
4.13
4.57
5.06
6.20
7.59
9.30
11.39
13.95
17.09
20.93
25.63
31.39
580
470
430
390
350
320
290
260
235
210
190
175
140
115
95
77
62
50
42
34
28
470
390
350
320
290
260
235
210
190
175
155
140
115
95
77
62
50
42
34
28
22
390
320
290
260
235
210
190
175
155
140
130
115
95
77
62
50
42
34
28
22
18
3.46
3.81
4.30
4.68
4.98
4.16
4.70
4.35
4.91
4.33
4.89
11.6
12.9
14.2
14.0
14.2
14.2
14.3
14.1
14.3
14.3
3.49
3.84
4.34
4.70
5.22
4.19
4.74
4.39
4.96
4.36
4.93
11.7
13.0
14.2
14.1
14.3
14.3
14.3
14.1
14.3
14.3
3.52
3.88
4.38
4.71
5.24
4.23
4.78
4.38
4.95
4.37
4.94
11.8
13.1
14.2
14.2
14.3
14.3
14.3
14.2
14.3
14.3
6.67
7.08
9.16
7.70
10.1
8.30
10.6
8.34
11.3
8.43
11.4
22.5
24.8
25.4
25.4
25.4
25.5
25.6
25.6
25.6
25.6
6.74
7.40
9.26
7.76
10.2
8.35
10.7
8.39
11.4
8.47
11.4
22.7
24.9
25.4
25.5
25.5
25.5
25.6
25.5
25.7
25.6
6.81
7.46
9.36
7.80
10.3
8.42
10.7
8.45
11.4
8.52
11.4
23.0
24.9
25.5
25.6
25.5
25.5
25.7
25.7
25.6
25.7
11.0
14.1
15.6
15.2
16.8
17.0
18.8
17.5
19.4
18.0
19.8
38.4
41.5
44.9
45.0
45.2
45.2
44.6
45.3
45.3
45.2
11.2
14.8
16.4
16.1
17.8
17.1
18.9
17.7
19.5
18.1
19.9
40.4
43.9
45.1
45.2
45.2
45.3
44.8
45.3
45.3
45.2
11.3
15.5
17.1
17.2
19.0
17.3
19.1
17.8
19.7
18.3
20.0
42.1
45.1
45.1
45.2
45.3
45.3
45.0
45.2
45.4
45.4
–
22.3
25.8
22.8
26.3
24.1
27.9
23.5
27.2
24.5
28.3
54.6
63.3
63.7
64.0
64.2
64.3
64.5
62.8
63.1
60.8
–
23.3
26.9
23.1
26.7
24.4
28.2
23.7
27.4
24.7
28.6
54.6
63.5
63.9
64.2
64.3
64.4
64.6
62.7
63.3
60.9
–
23.4
27.1
23.4
27.0
24.6
28.4
23.9
27.7
24.9
28.8
54.8
64.0
64.2
64.3
64.4
64.5
64.6
62.7
63.6
61.1
24.1
29.0
31.5
35.3
38.4
37.8
39.4
38.7
39.6
35.9
39.1
79.2
92.9
93.5
93.7
93.5
94.1
94.3
91.4
90.0
89.1
24.2
29.1
31.6
35.8
39.0
38.4
39.6
39.1
39.8
36.3
39.5
79.5
93.0
93.6
93.7
94.0
94.3
94.5
92.0
90.5
89.4
24.1
28.9
31.5
36.2
39.4
38.8
40.0
39.7
40.1
36.6
39.8
79.0
93.6
93.7
94.1
94.3
94.5
94.5
92.5
91.0
89.7
35.8
38.6
49.8
42.2
53.7
44.9
58.6
42.4
62.4
42.2
59.0
120
130
142
148
143
142
149
150
150
150
36.3
39.4
50.5
42.9
54.8
45.6
59.6
42.9
63.3
42.3
59.6
122
132
144
148
144
142
150
150
150
150
36.9
39.9
51.3
43.4
55.5
46.1
60.3
43.2
64.1
42.1
60.0
124
134
146
149
145
141
150
150
150
151
–
–
–
–
–
–
–
–
–
–
–
172
184
193
204
208
209
209
208
211
210
–
–
–
–
–
–
–
–
–
–
–
180
195
204
208
209
210
210
210
210
211
–
–
–
–
–
–
–
–
–
–
–
183
199
207
208
209
210
210
210
211
211
–
–
–
–
–
–
–
–
–
–
–
–
–
–
289
266
271
278
311
292
304
–
–
–
–
–
–
–
–
–
–
–
–
–
–
293
270
273
281
313
295
308
–
–
–
–
–
–
–
–
–
–
–
–
–
–
298
274
277
285
314
298
309
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
390
403
394
408
415
416
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
396
408
394
412
415
416
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
401
414
394
415
417
416
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
480
491
505
508
575
557
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
489
498
513
513
581
560
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
497
506
520
519
587
564
Drive Size ➀ ➁
© Rexnord 2014
(311-110) 37
Triple Reduction — Horsepower
High-Speed
Shaft
RPM
1750
1430
1170
870
720
580
Nominal
Ratios
±4%
Approx.
L.S. Shaft
RPM
2040
2050
2060
2070
2080
2090
2100
2110
2120
2130
38.44
47.08
57.66
70.62
86.50
105.9
129.7
158.9
194.6
38.44
47.08
57.66
70.62
86.50
105.9
129.7
158.9
194.6
38.44
47.08
57.66
70.62
86.50
105.9
129.7
158.9
194.6
38.44
47.08
57.66
70.62
86.50
105.9
129.7
158.9
194.6
38.44
47.08
57.66
70.62
86.50
105.9
129.7
158.9
194.6
38.44
47.08
57.66
70.62
86.50
105.9
129.7
158.9
194.6
45
37
30
25
20
16.5
13.5
11.0
9.0
37
30
25
20
16.5
13.5
11.0
9.0
7.5
30
25
20
16.5
13.5
11.0
9.0
7.5
6.0
22
18
15
12.5
10.0
8.3
6.8
5.5
4.5
18
15
12.5
10.0
8.3
6.8
5.5
4.5
3.8
15
12.5
10.0
8.3
6.8
5.5
4.5
3.8
3.0
10.4
8.67
6.91
5.69
4.79
3.80
3.16
2.50
–
8.53
7.09
5.65
4.65
3.92
3.10
2.59
2.04
–
6.99
5.80
4.62
3.81
3.21
2.54
2.12
1.67
–
5.20
4.32
3.44
2.83
2.39
1.89
1.58
1.24
–
4.31
3.58
2.85
2.34
1.98
1.56
1.31
1.03
–
3.47
2.88
2.29
1.89
1.60
1.26
1.05
0.83
–
18.9
15.6
12.8
10.4
8.41
6.85
5.58
4.54
–
15.5
12.7
10.5
8.48
6.88
5.60
4.56
3.71
–
12.7
10.4
8.56
6.94
5.63
4.58
3.74
3.04
–
9.42
7.76
6.37
5.17
4.19
3.41
2.78
2.26
–
7.80
6.43
5.27
4.28
3.47
2.82
2.30
1.87
–
6.29
5.18
4.25
3.45
2.79
2.27
1.85
1.51
–
32.3
26.9
22.2
17.1
14.7
11.4
9.54
7.96
6.62
26.7
22.0
18.1
14.1
12.0
9.41
7.83
6.54
5.41
21.9
18.0
14.8
11.6
9.81
7.73
6.40
5.36
4.42
16.3
13.4
11.0
8.71
7.29
5.78
4.76
3.99
3.29
13.5
11.1
9.14
7.24
6.04
4.80
3.94
3.30
2.72
10.8
8.93
7.36
5.85
4.86
3.88
3.17
2.66
2.19
46.2
37.8
31.7
25.3
20.8
17.7
13.9
11.9
9.65
37.7
31.0
25.9
20.7
17.0
14.5
11.4
9.74
7.89
30.9
25.5
21.2
16.9
13.9
11.8
9.29
7.97
6.47
23.0
19.0
15.8
12.6
10.4
8.81
6.91
5.93
4.81
19.0
15.8
13.1
10.4
8.58
7.29
5.72
4.91
3.99
15.3
12.7
10.5
8.39
6.91
5.87
4.61
3.96
3.21
63.7
53.9
44.9
36.9
30.1
23.8
19.9
16.3
–
52.1
44.0
36.7
30.3
24.6
19.5
16.3
13.3
–
42.6
36.0
30.0
24.9
20.1
15.9
13.4
10.9
–
31.7
26.8
22.3
18.5
15.0
11.8
9.95
8.14
–
26.2
22.2
18.5
15.4
12.4
9.79
8.24
6.74
–
21.1
17.9
14.9
12.4
9.98
7.89
6.64
5.43
–
98.7
86.3
72.3
59.8
49.1
40.4
32.3
26.6
21.6
85.7
70.7
59.3
48.9
40.1
33.1
26.4
21.7
17.7
70.6
57.9
48.6
40.0
32.9
27.1
21.6
17.8
14.5
52.6
43.1
36.2
29.8
24.4
20.1
16.1
13.2
10.8
43.5
35.7
29.9
24.7
20.2
16.7
13.3
11.0
8.91
35.1
28.8
24.1
19.9
16.3
13.4
10.7
8.83
7.18
135
119
102
81.6
66.2
56.0
43.8
37.0
–
115
98.6
83.4
66.8
54.2
45.8
35.8
30.3
–
96.1
80.8
68.3
54.7
44.3
37.5
29.3
24.8
–
72.3
60.2
50.8
40.7
33.0
27.9
21.8
18.4
–
59.9
49.8
42.1
33.7
27.3
23.1
18.1
15.3
–
48.3
40.2
33.9
27.2
22.0
18.6
14.6
12.3
–
196
168
145
125
101
82.5
65.1
53.8
–
170
143
122
103
82.8
68.0
53.4
44.0
–
143
119
101
84.5
67.8
55.7
43.8
36.1
–
109
90.0
76.4
62.9
50.5
41.4
32.6
26.9
–
91.1
75.2
63.5
52.1
41.8
34.3
27.0
22.3
–
74.2
61.1
51.2
42.0
33.7
27.6
21.8
18.0
–
269
239
202
169
131
108
89.7
73.2
–
233
197
165
139
107
88.4
73.4
59.9
–
196
162
135
114
87.8
72.4
60.1
49.0
–
146
120
101
84.6
65.3
53.8
44.7
36.5
–
121
99.7
83.5
70.0
54.1
44.6
37.0
30.2
–
97.4
80.4
67.3
56.4
43.6
35.9
29.8
24.3
–
332
322
276
237
200
150
127
93.6
–
283
278
227
195
163
124
104
77.3
–
231
230
189
160
134
103
85.0
63.8
–
172
172
142
119
99.4
76.7
63.2
47.9
–
142
142
117
98.2
82.2
63.5
52.3
39.8
–
115
115
94.5
79.1
66.3
51.1
42.1
32.2
–
Drive Size ➀
38 (311-110)
© Rexnord 2014
Triple Reduction — Torque
High-Speed
Shaft
RPM
1750
1430
1170
870
720
580
Nominal
Ratios
±4%
Approx.
L.S. Shaft
RPM
2040
2050
2060
2070
2080
2090
2100
2110
2120
2130
38.44
47.08
57.66
70.62
86.50
105.9
129.7
158.9
194.6
38.44
47.08
57.66
70.62
86.50
105.9
129.7
158.9
194.6
38.44
47.08
57.66
70.62
86.50
105.9
129.7
158.9
194.6
38.44
47.08
57.66
70.62
86.50
105.9
129.7
158.9
194.6
38.44
47.08
57.66
70.62
86.50
105.9
129.7
158.9
194.6
38.44
47.08
57.66
70.62
86.50
105.9
129.7
158.9
194.6
45
37
30
25
20
16.5
13.5
11.0
9.0
37
30
25
20
16.5
13.5
11.0
9.0
7.5
30
25
20
16.5
13.5
11.0
9.0
7.5
6.0
22
18
15
12.5
10.0
8.3
6.8
5.5
4.5
18
15
12.5
10.0
8.3
6.8
5.5
4.5
3.8
15
12.5
10.0
8.3
6.8
5.5
4.5
3.8
3.0
14.3
14.3
14.3
14.3
14.2
14.4
14.2
14.3
–
14.3
14.3
14.3
14.3
14.2
14.3
14.3
14.3
–
14.3
14.3
14.3
14.4
14.2
14.4
14.3
14.3
–
14.3
14.3
14.4
14.3
14.3
14.4
14.3
14.3
–
14.4
14.4
14.4
14.3
14.3
14.3
14.3
14.4
–
14.4
14.3
14.3
14.4
14.3
14.4
14.3
14.4
–
25.6
25.6
25.6
25.7
25.6
25.7
25.6
25.7
–
25.7
25.5
25.7
25.6
25.7
25.7
25.7
25.7
–
25.7
25.6
25.6
25.6
25.7
25.7
25.7
25.7
–
25.6
25.6
25.7
25.7
25.7
25.7
25.7
25.7
–
25.6
25.7
25.7
25.7
25.7
25.7
25.7
25.7
–
25.7
25.7
25.7
25.7
25.7
25.7
25.7
25.7
–
44.7
45.2
45.2
43.5
45.3
43.7
45.1
44.9
45.3
45.2
45.2
45.1
43.9
45.3
44.2
45.3
45.1
45.3
45.4
45.2
45.1
44.1
45.3
44.3
45.2
45.2
45.2
45.4
45.3
45.1
44.6
45.2
44.6
45.3
45.3
45.3
45.4
45.3
45.3
44.8
45.3
44.8
45.3
45.2
45.2
45.1
45.3
45.3
44.9
45.2
44.9
45.2
45.3
45.2
62.9
63.0
64.6
64.8
64.7
64.8
64.9
64.7
64.2
62.8
63.2
64.6
64.9
64.7
65.0
65.1
64.8
64.2
62.9
63.5
64.6
64.7
64.7
64.6
64.8
64.8
64.4
63.0
63.7
64.8
64.9
65.1
64.9
64.9
64.9
64.4
62.9
64.0
64.9
64.7
64.9
64.9
64.9
64.9
64.5
62.9
63.8
64.6
64.8
64.9
64.8
64.9
65.0
64.4
89.2
91.6
93.0
92.5
95.0
92.3
93.4
91.8
–
89.2
91.6
93.1
93.0
95.0
92.6
93.6
91.6
–
89.2
91.6
93.0
93.4
94.9
92.2
94.1
91.8
–
89.2
91.7
93.0
93.3
95.2
92.1
93.9
92.2
–
89.1
91.7
93.2
93.8
95.1
92.3
94.0
92.2
–
89.1
91.8
93.2
93.8
95.0
92.3
94.0
92.2
–
140
150
150
150
151
150
151
151
151
149
150
150
151
150
151
151
151
151
150
150
151
150
151
151
151
151
151
150
151
151
151
151
151
151
151
151
150
151
151
151
151
151
151
152
151
151
151
151
151
151
151
151
151
151
196
207
210
210
211
211
211
211
–
204
210
210
211
211
211
211
211
–
208
211
211
211
211
211
211
212
–
211
211
211
211
211
211
211
211
–
211
211
211
211
211
211
212
212
–
211
211
211
212
211
211
212
212
–
271
282
295
310
313
311
300
302
–
287
293
304
313
314
314
302
302
–
296
298
308
314
314
314
302
303
–
303
303
313
314
315
314
303
303
–
306
306
314
314
315
315
303
304
–
309
309
315
314
315
314
304
304
–
381
411
415
414
416
416
416
417
–
404
414
415
417
416
417
417
417
–
415
416
415
418
417
417
417
417
–
416
415
417
417
417
417
417
418
–
417
416
417
417
417
418
417
418
–
416
417
417
417
417
417
417
418
–
473
548
569
584
588
572
587
522
–
494
579
573
588
587
578
589
527
–
493
585
583
590
590
587
588
532
–
493
589
589
590
588
588
588
537
–
492
587
587
588
588
588
588
539
–
495
590
588
588
588
588
588
542
–
Drive Size ➀ ➁
© Rexnord 2014
(311-110) 39
Quadruple Reduction — Horsepower
High-Speed
Shaft
RPM
1750
1430
1170
870
720
580
Nominal
Ratios
±4%
Approx.
L.S. Shaft
RPM
2050
2060
2070
2080
2090
2100
2110
2120
2130
194.6
238.4
291.9
357.5
437.9
536.3
656.8
804.5
985.3
194.6
238.4
291.9
357.5
437.9
536.3
656.8
804.5
985.3
194.6
238.4
291.9
357.5
437.9
536.3
656.8
804.5
985.3
194.6
238.4
291.9
357.5
437.9
536.3
656.8
804.5
985.3
194.6
238.4
291.9
357.5
437.9
536.3
656.8
804.5
985.3
194.6
238.4
291.9
357.5
437.9
536.3
656.8
804.5
985.3
9.0
7.5
6.0
5.0
4.0
3.2
2.7
2.2
1.8
7.5
6.0
5.0
4.0
3.2
2.7
2.2
1.8
1.5
6.0
5.0
4.0
3.2
2.7
2.2
1.8
1.5
1.2
4.5
3.8
3.0
2.5
2.0
1.6
1.3
1.1
0.90
3.8
3.0
2.5
2.0
1.6
1.3
1.1
0.90
0.75
3.0
2.5
2.0
1.6
1.3
1.1
0.90
0.75
0.60
3.53
3.08
2.49
2.08
1.71
1.40
1.14
0.920
0.750
2.89
2.52
2.04
1.70
1.40
1.15
0.930
0.750
0.610
2.36
2.06
1.67
1.39
1.14
0.940
0.760
0.620
0.500
1.76
1.53
1.24
1.03
0.850
0.700
0.570
0.460
0.370
1.46
1.27
1.03
0.860
0.700
0.580
0.470
0.380
0.310
1.17
1.02
0.830
0.690
0.570
0.470
0.380
0.310
0.250
–
5.17
4.24
3.46
2.80
2.32
1.94
1.58
1.30
–
4.29
3.47
2.83
2.29
1.89
1.58
1.29
1.06
–
3.51
2.84
2.31
1.87
1.55
1.29
1.06
0.870
–
2.61
2.11
1.72
1.39
1.15
0.960
0.780
0.650
–
2.16
1.75
1.42
1.15
0.950
0.800
0.650
0.540
–
1.74
1.41
1.15
0.930
0.770
0.640
0.520
0.430
–
7.62
6.16
5.03
4.06
3.30
2.81
2.29
1.86
–
6.23
5.03
4.11
3.32
2.70
2.30
1.88
1.52
–
5.09
4.12
3.36
2.72
2.21
1.88
1.53
1.25
–
3.79
3.06
2.50
2.02
1.64
1.40
1.14
0.930
–
3.13
2.54
2.07
1.67
1.36
1.16
0.940
0.770
–
2.52
2.04
1.67
1.35
1.09
0.930
0.760
0.620
13.7
11.1
9.06
7.32
5.06
3.98
4.14
2.86
2.25
11.2
9.07
7.40
5.98
4.14
3.26
3.38
2.34
1.84
9.18
7.42
6.06
4.90
3.39
2.67
2.77
1.91
1.51
6.83
5.52
4.51
3.64
2.52
1.98
2.06
1.42
1.12
5.65
4.57
3.73
3.01
2.09
1.64
1.70
1.18
0.93
4.55
3.68
3.00
2.43
1.68
1.32
1.37
0.95
0.75
–
17.7
14.7
11.9
9.72
7.86
6.50
5.36
4.44
–
14.5
12.0
9.74
7.95
6.42
5.32
4.38
3.63
–
11.8
9.85
7.97
6.50
5.26
4.35
3.58
2.97
–
8.81
7.33
5.93
4.84
3.91
3.23
2.66
2.21
–
7.29
6.07
4.91
4.00
3.23
2.68
2.20
1.83
–
5.87
4.89
3.95
3.22
2.61
2.16
1.78
1.47
28.9
24.1
19.2
15.8
13.4
11.3
8.90
6.90
5.88
23.6
19.7
15.7
12.9
11.0
9.27
7.27
5.64
4.80
19.3
16.1
12.8
10.6
8.98
7.58
5.95
4.61
3.93
14.4
12.0
9.54
7.86
6.68
5.64
4.42
3.43
2.92
11.9
9.91
7.90
6.50
5.53
4.67
3.66
2.84
2.42
9.57
7.98
6.36
5.24
4.45
3.76
2.95
2.29
1.95
45.3
37.3
30.6
24.8
20.1
15.9
12.9
11.1
8.75
37.0
30.5
25.0
20.3
16.4
13.0
10.6
9.04
7.15
30.3
24.9
20.5
16.6
13.4
10.6
8.66
7.39
5.85
22.5
18.6
15.2
12.3
10.0
7.91
6.44
5.50
4.35
18.7
15.4
12.6
10.2
8.28
6.55
5.33
4.55
3.60
15.0
12.4
10.2
8.23
6.67
5.28
4.30
3.67
2.90
58.6
48.3
39.6
32.1
26.0
21.7
17.7
14.8
12.1
47.9
39.5
32.4
26.3
21.3
17.7
14.4
12.1
9.87
39.2
32.3
26.5
21.5
17.4
14.5
11.8
9.91
8.08
29.2
24.0
19.7
16.0
13.0
10.8
8.78
7.37
6.01
24.2
19.9
16.3
13.2
10.7
8.92
7.27
6.10
4.97
19.5
16.0
13.1
10.7
8.64
7.19
5.86
4.91
4.00
81.0
67.0
57.8
47.4
38.5
31.1
25.9
18.3
15.4
68.2
57.4
47.2
38.8
31.4
25.5
21.2
15.0
12.6
56.0
46.9
38.6
31.7
25.7
20.8
17.3
12.2
10.3
41.6
34.9
28.7
23.6
19.1
15.5
12.9
9.10
7.66
34.5
28.9
23.8
19.5
15.8
12.8
10.7
7.53
6.34
27.8
23.3
19.2
15.7
12.7
10.3
8.59
6.06
5.11
Drive Size ➀
40 (311-110)
© Rexnord 2014
Quadruple Reduction — Torque
High-Speed
Shaft
RPM
1750
1430
1170
870
720
580
Nominal
Ratios
±4%
Approx.
L.S. Shaft
RPM
2050
2060
2070
2080
2090
2100
2110
2120
2130
194.6
238.4
291.9
357.5
437.9
536.3
656.8
804.5
985.3
194.6
238.4
291.9
357.5
437.9
536.3
656.8
804.5
985.3
194.6
238.4
291.9
357.5
437.9
536.3
656.8
804.5
985.3
194.6
238.4
291.9
357.5
437.9
536.3
656.8
804.5
985.3
194.6
238.4
291.9
357.5
437.9
536.3
656.8
804.5
985.3
194.6
238.4
291.9
357.5
437.9
536.3
656.8
804.5
985.3
9.0
7.5
6.0
5.0
4.0
3.2
2.7
2.2
1.8
7.5
6.0
5.0
4.0
3.2
2.7
2.2
1.8
1.5
6.0
5.0
4.0
3.2
2.7
2.2
1.8
1.5
1.2
4.5
3.8
3.0
2.5
2.0
1.6
1.3
1.1
0.90
3.8
3.0
2.5
2.0
1.6
1.3
1.1
0.90
0.75
3.0
2.5
2.0
1.6
1.3
1.1
0.90
0.75
0.60
23.8
25.7
25.6
25.7
25.7
25.6
25.7
25.7
25.7
23.9
25.7
25.7
25.7
25.7
25.8
25.7
25.7
25.7
23.8
25.7
25.7
25.7
25.6
25.7
25.7
25.7
25.7
23.9
25.6
25.7
25.6
25.7
25.7
25.7
25.7
25.7
24.0
25.7
25.8
25.7
25.7
25.7
25.7
25.7
25.7
23.8
25.6
25.7
25.7
25.7
25.7
25.7
25.7
25.7
–
44.6
45.2
45.2
45.3
45.4
45.4
45.3
45.2
–
45.3
45.3
45.3
45.3
45.2
45.2
45.2
45.1
–
45.3
45.3
45.2
45.3
45.3
45.1
45.4
45.3
–
45.3
45.3
45.2
45.2
45.2
45.2
45.2
45.2
–
45.3
45.4
45.1
45.2
45.3
45.2
45.3
45.3
–
45.3
45.4
45.4
45.2
45.2
45.3
45.3
45.3
–
64.9
64.9
64.9
64.9
64.5
64.9
64.8
64.4
–
64.9
64.8
64.9
64.9
64.6
65.0
65.1
64.4
–
64.8
64.9
64.9
65.0
64.6
64.9
64.7
64.7
–
64.9
64.8
64.9
64.9
64.5
65.0
64.9
64.6
–
64.8
65.0
65.0
64.8
64.6
65.1
64.9
64.6
–
64.8
64.8
65.1
65.1
64.3
64.9
65.0
64.6
94.8
95.0
95.1
95.0
79.5
75.0
95.2
79.6
75.1
94.9
95.0
95.0
95.0
79.6
75.2
95.1
79.7
75.2
95.0
95.0
95.1
95.2
79.7
75.3
95.3
79.5
75.4
95.1
95.1
95.2
95.1
79.6
75.1
95.3
79.5
75.2
95.1
95.1
95.1
95.0
79.8
75.1
95.0
79.8
75.3
95.0
95.1
95.0
95.2
79.6
75.1
95.1
79.7
75.2
–
151
151
151
151
151
151
151
151
–
151
150
151
151
151
151
151
151
–
150
151
151
151
151
151
151
151
–
151
151
151
151
151
151
151
151
–
151
151
151
151
151
151
151
151
–
151
151
151
151
151
151
151
151
210
211
212
212
211
211
212
210
212
210
211
212
211
212
212
212
210
211
210
211
211
212
212
211
212
210
212
211
212
211
212
212
212
211
210
211
211
211
212
211
212
212
212
210
212
210
211
211
212
212
212
212
210
212
315
315
315
315
315
304
304
316
305
314
315
315
315
314
305
305
315
305
315
314
315
315
314
303
305
315
305
314
316
314
314
315
305
305
315
305
316
316
315
314
315
305
305
315
305
314
316
316
315
315
305
305
315
305
417
418
417
417
417
418
419
417
419
417
418
418
418
418
418
417
418
418
417
418
418
418
418
418
418
418
418
418
417
417
418
420
419
418
418
418
419
418
417
417
417
418
418
418
418
419
417
416
420
418
418
418
418
418
580
573
600
600
601
599
600
516
522
598
600
600
601
600
601
601
517
522
600
599
599
600
600
599
599
514
522
599
600
599
601
600
601
601
516
522
601
600
600
600
599
599
602
516
522
601
601
601
599
598
599
600
515
522
Drive Size ➀
© Rexnord 2014
(311-110) 41
Technical Data
Thermal Horsepower
Thermal horsepower is the actual horsepower (without service factor) that a drive will
transmit continually for three hours or more without overheating.
Thermal ratings need not be considered when the continuous operating period does not
exceed three hours and the shutdown time equals or exceeds the running time. However,
when the running time exceeds the shutdown time, selection must be made on a basis of
adequate thermal rating.
The duty cycle factor considers an increase in the Basic Thermal Rating for gear drives
that operate less than 100% of any one hour time period. If a drive operates for more
than three hours and operates continuously for any given hour of the day, then the duty
cycle must be considered 100%.
Thermal Rating Example
A ball mill with helical ring gear, has a 500 hp, 1750 rpm motor coupling connected to
an UltraMax Size 2110FC2 drive with a ratio of 9.30:1. From the Service Factor table
on page 9, the minimum service factor is 1.50. From page 32 the mechanical
horsepower rating is 750 hp. The actual service factor is
750 ÷ 500 = 1.50.
Check to see if the actual horsepower rating is greater than the application-adjusted
thermal rating under the following conditions:
Ambient Temperature = 120°F
Checking the thermal horsepower is extremely important, for if the drive creates heat
faster than it can be dissipated, severe damage may occur.
Altitude = Sea Level
The application-adjusted thermal capacity must be greater than the actual brake
horsepower. Determine the Application-Adjusted Thermal Capacity by multiplying the
Basic Thermal Capacity, pages 44-46, by the appropriate environmental factors
(Table 8 through Table 12). Compare the actual power rating required (without service
factor) with the application-adjusted thermal rating. If the actual load exceeds the
application-adjusted thermal rating, shaft fans, electric fan or cooling tubes may be
added, an optional oil-to-water or oil-to-air heat exchanger may be used, or a larger drive
may be selected.
Inlet Water Temperature = 100°F
NOTE: Sizes 2040 and 2050 are not available with shaft fan, electric fan or cooling tubes.
Installed Environment = Indoors (large room, air velocity undefined)
Continuous Duty
First find PTA with no auxiliary cooling (PTA = B1 x B2 x B3 x B5 x PT).
B1 = 0.69 (Table 8)
B2 = 1.00 (Table 9)
B3 = 1.00 (Table 10)
B5 = 1.00 (Table 12)
Application-Adjusted Thermal Rating
PT = 179 (page 45)
PTA = B1 x B2 x B3 x B4 x B5 x PT where:
PTA = 0.69 x 1.00 x 1.00 x 1.00 x 179 = 124 thermal hp.
PTA = Application-Adjusted Thermal Rating
This drive will require cooling because 124 thermal hp is less than the motor horsepower
of 500. First try a shaft fan as shown below.
PT = Basic Thermal Rating (pages 44-46)
B1 = Ambient Air Temperature Factor, Table 8
B2 = Altitude Factor, Table 9
B3 = Ambient Air Velocity Factor, Table 10
B4 = Inlet Water Temperature Factor, Table 11
B5 = Duty Cycle Factor, Table 12
PTA with Shaft Fan = B1 x B2 x B5 x PT
B1 = 0.69 (Table 8)
B2 = 1.00 (Table 9)
B5 = 1.00 (Table 12)
PT = 672 (page 45)
PTA = 0.69 x 1.00 x 1.00 x 672 = 464 thermal hp which is still less than 500. Next try an
electric fan.
PTA with an Electric Fan = B1 x B2 x B5 x PT
B1 = 0.69 (Table 8)
B2 = 1.00 (Table 9)
B5 = 1.00 (Table 12)
PT = 795 (page 45)
PTA = 0.69 x 1.00 x 1.00 x 795 = 549 thermal hp which is acceptable.
Cooling Tubes are also acceptable.
PTA with Cooling Tubes = B1 x B4 x B5 x PT
B1 = 0.91 (Table 8)
B4 = 0.83 (Table 11)
B5 = 1.00 (Table 12)
PT = 1520 (page 45)
PTA = 0.91 x 0.83 x 1.00 x 1520 = 1150 thermal hp.
42 (311-110)
© Rexnord 2013
Thermal Horsepower
Table 8 — Ambient Temperature Factor – B1 (For all cooling methods)
Ambient
Temperature ➀
Factor with or without
Shaft or Electric Fan
Factor with
Cooling Tubes
50°F
1.19
1.06
60°F
1.13
1.04
70°F
1.07
1.02
80°F
1.00
1.00
90°F
0.93
0.98
100°F
0.85
0.96
110°F
0.78
0.94
120°F
0.69
0.91
➀ Basic thermal ratings are for an ambient temperature of 80°F (27°C), from sea
level to 2500 ft. Application-adjusted thermal ratings must be calculated using
the application correction factors listed in these tables before comparing to the
required load. For cooling beyond the range of cooling tubes, refer to Factory for the
selection of oil-to-water or oil-to-air heat exchangers. Thermal ratings with cooling
tubes are based on a maximum water inlet temperature of 70°F (21°C) with a 2 gpm
flow rate.
Table 9 — Altitude Factor – B2 (For air cooling only)
Altitude – ft.
Sea Level = 0
Factor with or without
Auxiliary Cooling
0 to 2,500
1.00
2,500
0.95
5,000
0.90
7,500
0.85
10,000
0.81
12,500
0.76
15,000
0.72
Table 11 — Inlet Water Temperature Factor – B4 (For water cooling only)
Inlet Water Temperature
Factor with Cooling Tubes Only
50°F
1.11
60°F
1.05
70°F
1.00
80°F
0.94
90°F
0.88
100°F
0.83
Table 12 — Duty Cycle Factor ➂ – B5 (For all cooling methods)
% Operating Time per Hour
Factor with or without Auxiliary Cooling
100%
1.00
80%
1.05
60%
1.15
40%
1.35
20%
1.80
➂ The duty cycle factor must be based on the percentage of each hour that the drive
is operating. For example: a gear drive operating for 48 minutes and resting for 12
minutes every hour of the day has an 80% duty cycle, but a drive operating for four
hours and resting for four hours has a 100% duty cycle. Where % run time per hour
falls between values shown above, use next higher % run time.
Table 10 — Ambient Air Velocity Factor – B3 (For no auxiliary cooling only)
Sustained Ambient Air
Velocity (fpm) ➁
Installed Environment
Factor without Shaft or
Electric Fan or Cooling
Tubes
Less than 100 fpm (1 mph)
Small Confined Space
0.75
Between 100 fpm & 275 fpm
(1 to 3 mph)
Large Indoor Room
1.00
Between 275 fpm & 725 fpm
(3 to 8 mph)
Large Indoor Room
1.40
Greater than 725 fpm (8 mph)
Outdoors
1.90
➁ The sustained ambient air velocity must be a continuous flow of air directly onto
the gear drive. If the air flow cannot be counted on to be continuous, an ambient air
velocity factor of 1.00 must be used.
© Rexnord 2013
(311-110) 43
Basic Thermal Ratings
Double Reduction ➀
Nominal
Ratios
High-Speed Shaft
RPM
3500
2900
2400
1750
1.50
thru
2.49
1430
1170
870
720
580
3500
2900
2400
1750
2.76
thru
4.57
1430
1170
870
720
580
Drive Size
Auxiliary
Cooling
2040
2050
2060
2070
2080
2090
None
Shaft Fan
Electric Fan
Cooling Tubes
None
Shaft Fan
Electric Fan
Cooling Tubes
None
Shaft Fan
Electric Fan
Cooling Tubes
None
Shaft Fan
Electric Fan
Cooling Tubes
None
Shaft Fan
Electric Fan
Cooling Tubes
None
Shaft Fan
Electric Fan
Cooling Tubes
None
Shaft Fan
Electric Fan
Cooling Tubes
None
Shaft Fan
Electric Fan
Cooling Tubes
None
Shaft Fan
Electric Fan
Cooling Tubes
None
Shaft Fan
Electric Fan
Cooling Tubes
None
Shaft Fan
Electric Fan
Cooling Tubes
None
Shaft Fan
Electric Fan
Cooling Tubes
None
Shaft Fan
Electric Fan
Cooling Tubes
None
Shaft Fan
Electric Fan
Cooling Tubes
None
Shaft Fan
Electric Fan
Cooling Tubes
None
Shaft Fan
Electric Fan
Cooling Tubes
None
Shaft Fan
Electric Fan
Cooling Tubes
None
Shaft Fan
Electric Fan
Cooling Tubes
➁
➁
➁
➁
➁
➁
➁
➁
➁
➁
➁
➁
60.5
–
–
–
64.3
–
–
–
67.0
–
–
–
67.9
–
–
–
67.2
–
–
–
65.6
–
–
–
➁
➁
➁
➁
➁
➁
➁
➁
➁
➁
➁
➁
58.2
–
–
–
59.0
–
–
–
58.8
–
–
–
57.1
–
–
–
55.5
–
–
–
53.5
–
–
–
➁
➁
➁
➁
➁
➁
➁
➁
➁
➁
➁
➁
65.5
–
–
–
72.5
–
–
–
77.8
–
–
–
83.5
–
–
–
84.7
–
–
–
84.4
–
–
–
➁
➁
➁
➁
➁
➁
➁
➁
➁
➁
➁
➁
66.4
–
–
–
71.6
–
–
–
74.1
–
–
–
74.6
–
–
–
73.6
–
–
–
71.7
–
–
–
➁
➁
➁
➁
➁
➁
➁
➁
➁
➁
➁
➁
79.3
153
245
580
84.8
146
243
539
88.4
138
239
497
88.2
125
229
445
60.5
89.9
195
458
65.8
91.0
195
423
➁
➁
➁
➁
➁
➁
➁
➁
➁
➁
➁
➁
80.3
147
229
461
83.4
138
225
420
84.5
129
219
418
57.6
91.4
185
416
63.0
91.0
185
385
66.5
88.9
181
348
➁
➁
➁
➁
➁
➁
➁
➁
➁
➁
➁
➁
92.1
178
288
651
100
170
286
610
104
161
281
566
104
146
269
497
101
136
260
501
75.8
105
228
475
➁
➁
➁
➁
➁
➁
➁
➁
➁
➁
➁
➁
92.5
171
273
537
97.5
162
269
494
99.8
152
263
450
65.5
104
217
470
72.1
104
218
438
76.6
103
215
400
➁
➁
➁
➁
➁
➁
➁
➁
➁
➁
➁
➁
118
237
361
740
127
224
358
696
131
211
351
648
130
189
334
571
127
176
322
549
89.0
129
277
533
➁
➁
➁
➁
➁
➁
➁
➁
➁
➁
➁
➁
117
228
343
623
123
214
338
574
126
200
330
526
76.2
126
260
532
83.8
126
264
501
89.8
127
263
461
➁
➁
➁
➁
➁
➁
➁
➁
➁
➁
➁
➁
176
560
664
1190
196
523
676
1140
212
485
677
1080
220
426
655
970
224
394
641
901
226
363
621
823
➁
➁
➁
➁
➁
➁
➁
➁
➁
➁
➁
➁
178
512
598
920
194
467
593
860
201
426
582
796
151
368
555
698
167
338
538
703
178
236
450
686
➀ Basic thermal ratings listed are for an ambient temperature of 80°F (27°C), from sea level to 2500 ft. Application adjusted thermal ratings must be calculated using the application
correction factors on page 43 before comparing to the required load. For cooling beyond the range of cooling tubes, refer to Factory for the selection of oil-to-water or oil-to-air heat
exchangers. Thermal ratings with cooling tubes are based on a maximum water inlet temperature of 70°F (21°C) with a 2 gpm flow rate.
➁ External cooling required for these selections; refer to Factory.
44 (311-110)
© Rexnord 2013
Double Reduction (Continued) ➀
Nominal
Ratios
High-Speed
Shaft
RPM
3500
2900
2400
1750
5.06
thru
11.39
1430
1170
870
720
580
3500
2900
2400
1750
13.95
thru
31.39
1430
1170
870
720
580
Drive Size
Auxiliary
Cooling
2040
2050
2060
2070
2080
2090
2100
2110
2120
2130
None
Shaft Fan
Electric Fan
Cooling Tubes
None
Shaft Fan
Electric Fan
Cooling Tubes
None
Shaft Fan
Electric Fan
Cooling Tubes
None
Shaft Fan
Electric Fan
Cooling Tubes
None
Shaft Fan
Electric Fan
Cooling Tubes
None
Shaft Fan
Electric Fan
Cooling Tubes
None
Shaft Fan
Electric Fan
Cooling Tubes
None
Shaft Fan
Electric Fan
Cooling Tubes
None
Shaft Fan
Electric Fan
Cooling Tubes
None
Shaft Fan
Electric Fan
Cooling Tubes
None
Shaft Fan
Electric Fan
Cooling Tubes
None
Shaft Fan
Electric Fan
Cooling Tubes
None
Shaft Fan
Electric Fan
Cooling Tubes
None
Shaft Fan
Electric Fan
Cooling Tubes
None
Shaft Fan
Electric Fan
Cooling Tubes
None
Shaft Fan
Electric Fan
Cooling Tubes
None
Shaft Fan
Electric Fan
Cooling Tubes
None
Shaft Fan
Electric Fan
Cooling Tubes
21.7
–
–
–
34.1
–
–
–
36.4
–
–
–
40.4
–
–
–
42.0
–
–
–
42.5
–
–
–
41.7
–
–
–
40.6
–
–
–
39.1
–
–
–
31.6
–
–
–
33.2
–
–
–
33.8
–
–
–
33.4
–
–
–
32.6
–
–
–
31.6
–
–
–
29.8
–
–
–
28.6
–
–
–
27.2
–
–
–
–
–
–
–
19.7
–
–
–
34.6
–
–
–
50.0
–
–
–
51.8
–
–
–
54.6
–
–
–
55.9
–
–
–
55.4
–
–
–
54.1
–
–
–
35.5
–
–
–
39.0
–
–
–
42.2
–
–
–
44.3
–
–
–
44.3
–
–
–
43.5
–
–
–
41.7
–
–
–
40.3
–
–
–
38.5
–
–
–
➁
➁
➁
➁
➁
➁
➁
➁
➁
➁
➁
➁
57.7
108
170
321
61.1
102
167
291
62.4
95.7
162
268
61.9
86.4
154
282
44.3
64.2
133
288
46.9
63.5
131
261
–
–
131
230
–
–
131
211
–
–
130
192
50.0
82.8
125
225
33.3
61.0
107
231
35.8
59.4
106
212
37.6
55.0
103
170
38.3
52.5
99.6
154
38.2
49.5
95.7
136
➁
➁
➁
➁
➁
➁
➁
➁
➁
➁
➁
➁
72.0
133
212
384
75.9
126
210
351
77.4
119
205
318
77.6
108
195
316
53.4
77.2
164
339
57.0
76.9
163
310
–
–
167
286
–
–
170
265
–
–
170
243
61.8
107
164
267
38.3
73.4
136
284
42.5
73.3
137
263
46.6
69.2
134
215
48.6
67.0
131
195
49.2
63.9
126
174
➁
➁
➁
➁
➁
➁
➁
➁
➁
➁
➁
➁
87.9
170
255
426
92.3
159
251
390
93.8
149
245
355
93.3
134
233
347
91.6
125
224
354
65.6
92.5
191
340
–
–
204
325
–
–
207
302
–
–
206
278
75.6
136
199
265
75.9
125
192
281
48.3
90.3
162
293
54.0
84.7
159
242
57.0
82.0
156
221
58.3
78.1
151
198
➁
➁
➁
➁
➁
➁
➁
➁
➁
➁
➁
➁
122
362
424
1010
132
332
423
928
141
303
415
845
145
265
398
726
144
243
384
654
141
220
367
731
–
–
325
746
–
–
332
691
–
–
333
633
61.5
281
324
538
71.7
252
315
481
81.6
226
304
521
96.0
150
246
539
102
144
246
493
105
137
241
442
➁
➁
➁
➁
➁
➁
➁
➁
➁
➁
➁
➁
151
507
600
1290
166
467
603
1190
179
428
596
1100
190
374
575
953
192
343
557
864
189
311
534
790
–
–
–
–
–
–
–
–
–
–
–
–
65.3
403
467
707
82.4
361
456
636
94.9
323
441
673
114
193
339
685
124
190
346
636
134
184
344
577
➁
➁
➁
➁
➁
➁
➁
➁
➁
➁
➁
➁
179
672
795
1520
198
620
806
1420
216
569
801
1320
235
498
777
1160
240
456
754
1060
240
413
725
948
–
–
–
–
–
–
–
–
–
–
–
–
175
543
628
855
90.5
485
613
776
107
434
595
699
130
246
446
799
148
243
459
751
162
236
459
689
➁
➁
➁
➁
➁
➁
➁
➁
➁
➁
➁
➁
211
914
1090
2410
242
854
1130
2280
268
790
1130
2130
300
697
1110
1890
314
641
1090
1740
320
582
1050
1560
–
–
–
–
–
–
–
–
–
–
–
–
213
763
884
1410
75.8
683
870
1280
112
612
848
1160
144
521
808
1130
167
295
607
1200
187
292
626
1120
➁
➁
➁
➁
➁
➁
➁
➁
➁
➁
➁
➁
205
967
1240
2290
253
912
1310
2860
281
859
1330
2690
317
771
1320
2420
338
715
1290
2240
352
653
1250
2020
–
–
–
–
–
–
–
–
–
–
–
–
221
862
1060
1820
253
777
1050
1670
85.3
699
1020
1520
146
596
977
1280
166
542
943
1370
191
299
718
1400
➁ External cooling required for these selections; refer to Factory.
© Rexnord 2013
(311-110) 45
Triple & Quadruple Reduction ➀
Nominal
Ratios
High-Speed
Shaft
RPM
Auxiliary
Cooling
Drive Size
2040
2050
2060
2070
2080
2090
2100
2110
2120
2130
55.0
–
130
237
50.7
–
125
217
49.6
–
120
197
47.3
–
112
169
45.6
–
107
152
43.4
–
101
134
35.8
–
86.3
123
34.6
–
82.2
110
33.2
–
78.0
98.6
31.0
–
72.0
82.5
29.6
–
68.3
73.5
27.9
–
64.3
68.0
80.0
–
187
452
75.0
–
180
412
70.0
–
172
374
63.4
–
160
321
61.0
–
152
289
58.1
–
144
255
50.0
–
130
272
48.6
–
123
244
46.7
–
117
218
43.8
–
108
183
41.8
–
103
163
39.5
–
97.0
142
120
206
298
650
110
187
288
598
100
169
276
547
94.6
147
258
474
91.6
134
246
430
87.6
122
233
382
74.7
146
207
384
72.6
131
198
346
70.0
117
188
310
65.7
100
174
262
62.8
91.1
165
234
59.5
82.0
155
204
135
252
400
760
130
229
385
702
125
208
369
644
120
181
344
562
116
166
328
512
111
151
310
457
100
189
290
460
97.1
169
276
415
93.3
151
262
373
87.3
130
242
315
83.3
118
229
282
78.7
106
216
247
161
358
551
1160
163
324
532
1080
161
293
511
993
157
254
477
872
152
232
455
797
146
209
431
715
130
266
396
705
126
236
377
639
121
211
358
576
113
179
330
490
108
162
313
439
102
145
294
385
176
409
680
1460
184
372
658
1360
187
338
632
1260
183
294
590
1110
179
269
563
1020
172
244
532
918
157
321
514
969
153
286
490
884
149
256
465
803
140
219
430
689
134
199
408
622
127
179
384
549
29.6
38.8
48.5
58.9
72.6
85.7
Triple Reduction
1750
1430
1170
38.44
thru
86.50
870
720
580
1750
1430
1170
105.9
thru
194.6
870
720
580
None
Shaft Fan
Electric Fan
Cooling Tubes
None
Shaft Fan
Electric Fan
Cooling Tubes
None
Shaft Fan
Electric Fan
Cooling Tubes
None
Shaft Fan
Electric Fan
Cooling Tubes
None
Shaft Fan
Electric Fan
Cooling Tubes
None
Shaft Fan
Electric Fan
Cooling Tubes
None
Shaft Fan
Electric Fan
Cooling Tubes
None
Shaft Fan
Electric Fan
Cooling Tubes
None
Shaft Fan
Electric Fan
Cooling Tubes
None
Shaft Fan
Electric Fan
Cooling Tubes
None
Shaft Fan
Electric Fan
Cooling Tubes
None
Shaft Fan
Electric Fan
Cooling Tubes
20.1
–
–
–
19.1
–
–
–
18.1
–
–
–
16.7
–
–
–
15.9
–
–
–
14.9
–
–
–
13.0
–
–
–
12.3
–
–
–
11.7
–
–
–
10.7
–
–
–
10.2
–
–
–
9.5
–
–
–
29.2
–
–
–
27.9
–
–
–
26.5
–
–
–
24.6
–
–
–
23.4
–
–
–
22.1
–
–
–
18.4
–
–
–
17.5
–
–
–
16.6
–
–
–
15.3
–
–
–
14.6
–
–
–
13.7
–
–
–
31.8
–
79.1
163
31.1
–
75.7
147
30.1
–
72.2
132
28.5
–
67.1
112
27.3
–
63.8
100
25.9
–
60.2
88.1
23.5
–
56.1
90.2
22.6
–
53.3
79.9
21.6
–
50.5
70.6
20.1
–
46.5
58.4
19.1
–
44.1
51.7
18.0
–
41.4
44.9
None
–
16.1
18.6
41.5
–
105
208
41.1
–
101
189
40.1
–
97.5
171
38.2
–
90.8
146
36.7
–
86.6
131
35.0
–
81.8
116
31.4
–
75.8
118
30.3
–
72.1
105
29.0
–
68.5
93.9
27.1
–
63.2
78.4
25.9
–
60.0
69.6
24.4
–
56.5
60.7
Quadruple Reduction
238.4 thru 580 thru 1750
985.3
23.5
46 (311-110)
© Rexnord 2013
Cooling for UltraMax Drives
As noted on page 6, the application-adjusted thermal capacity is the actual
horsepower (without service factor) that a drive will transmit continually for three hours
or more without overheating. If a drive creates heat faster than it can be dissipated, severe
damage may occur.
Shaft-Driven Cooling Fans
Cooling Tubes
Cooling tubes are an economical alternative for thermal requirements beyond the
range of fans. A series of straight, finned tubes are provided directly in the sump of
the drive. Water is circulated through these tubes to cool the oil. Since there are no
joints or connections inside the drive, leakage of water into the drive is eliminated. For
dimensions, refer to page 71.
Cooling fans provide a simple and inexpensive way to utilize the mechanical rating
of UltraMax gear drives by lowering operating temperatures, thus increasing thermal
horsepower capacity. Cooling fans have been successfully used on electric motors and
other related machinery for many years. They eliminate the need for water or oil cooling,
pumps and external piping. The sound level at 1750 rpm is about the same as that
from fans on totally enclosed, fan-cooled driving motors. Less than one quarter of one
percent cataloged horsepower rating is required to drive the fans. For dimensions, refer
to page 60.
Cooling Tubes
External Pumps & Coolers
Type PC external pump and cooler assemblies provide cooling capacity beyond the
range of fans and cooling tubes, and will allow the drive to run at full mechanical rating.
Packages are available for all UltraMax sizes. For selection, price and delivery, provide
full application details to your local Rexnord district office.
Shaft-Driven Cooling Fan
Electric Cooling Fans
Electric fans achieve thermal capacities up to twice that of shaft driven fans and can be
thermostatically controlled to shut off when not required. Electric fans can be mounted
on either side of the drive, permitting full use of usable shaft extension. For dimensions,
refer to page 70.
Electric Cooling Fan
© Rexnord 2013
(311-110) 47
Overhung Loads
High- & Low-Speed Shaft
Low-Speed Shaft
The overhung load and thrust ratings published in this catalog are based on a
combination of the most unfavorable conditions or rotation, speed, direction of applied
load and drive loading. If the calculated load exceeds the published value, or if an
overhung load and thrust load are applied simultaneously to a shaft, consult Factory and
provide complete application information (hp, rpm, driven machine, hours of operation
per day, direction of rotation, direction and location of applied loads).
Calculate low-speed shaft overhung load using the formula and Fc values at left. The
Lf load location factors tabulated on page 49 are based on the distance from the
centerline of the load to the drive seal cage.
Overhung Loads — Overhung load is imposed upon a shaft when a pinion, sprocket
or sheave is used as a power take-off. The magnitude of the load varies with the type of
take-off and its proximity to the shaft bearing. Calculate the load (including minimum
required service factor) and check the result against the tabulated overhung load rating.
Low-Speed Shaft Overhung Load Example — An UltraMax size 2070FC2 drive is used
to drive a uniformly-loaded chain conveyor. The drive is driven by a 50 hp, 1750 rpm,
electric motor coupling connected to the high-speed shaft. The low-speed shaft is
rotating at 85.2 rpm and is chain-connected to the conveyor shaft. The drive-mounted
sprocket has a pitch diameter of 12.85 inches, and the centerline of the teeth is located
3.00 inches out from the low-speed seal cage.
126,000 x (50 x 1.00) x .98
= 5639 lb
12.85 x 85.2
Since the allowable overhung load of the 2070 is 8,500 lb, this application is acceptable.
Overhung Load =
Overhung Load Formula:
The overhung load formula below considers the transmitted horsepower without service
factor. This is appropriate for applications where starting loads, momentary overloads
and brake capacities do not exceed 200% of drive rating (100% overload). For other
conditions, compute an equivalent power by multiplying the transmitted horsepower by
the appropriate service factor.
Overhung Load =
126,000 x HP x Fc x Lf
Pitch Dia x RPM
CENTERLINE
OF LOAD
SEAL
CAGE
DISTANCE
Fc = Load Connection Factor
Sprocket ➀..................................................................................................................1.00
Machined Pinion & Gear ➀.........................................................................................1.25
Synchronous (Timing) Belts.........................................................................................1.30
V-Belt...........................................................................................................................1.50
Flat Belt........................................................................................................................2.50
Lf = Load Location Factor ➁
Thrust Loads — Refer to page 55 for low-speed shaft thrust capacities. Thrust
capacities are for pure thrust loads. If thrust and overhung loads are applied
simultaneously, or if loads exceed these capacities, consult Factory.
High-Speed Shaft
High-speed shaft overhung load ratings published on pages 51-54 are for normal
conditions where the centerline of the load is one shaft diameter from the seal cage (or
external backstop), and for speeds of 1170 rpm or lower. Where the centerline of the load
is one shaft diameter or closer, calculate the high-speed shaft overhung load using Lf =
1 in the formula at left. Check the result against the rating on pages 51-54. Higher
overhung load capacities are available when the full drive torque rating is not utilized.
Refer to the Factory for higher ratings for these conditions or if the calculated load (using
Lf = 1) exceeds the published value or if the load is applied at a distance greater than one
shaft diameter from the high-speed shaft seal cage or external backstop. High-speed shaft
load location factors are available in Catalog 311-312.
High-Speed Shaft Overhung Load Example — A 15 hp, 1750 rpm motor with a 4-inch
pitch diameter sheave is V-belt-connected to an UltraMax size 2060FC2 drive which
has a nominal ratio of 31.39:1. A 12-inch pitch diameter sheave is mounted on the drive
high-speed shaft 1.50 inches (less than one shaft diameter) from the seal cage. Calculate
the high-speed shaft rpm and overhung load as follows:
Drive high-speed RPM =
➀ Refer all multiple chain sprocket and pinion-mounted applications to the Factory for
deflection analysis.
➁ For load location factors for drives with fan or external backstop, refer to Catalog
311-112.
x 1750 = 583 RPM
Using the overhung load formula,
L.S.S. — See table on page 49.
H.S.S. — See instructions at right.
4
12
Overhung Load =
126,000 x 15 x 1.50 x 1.00
12 x 583
= 405 lb
From the table on page 51, in the 580 high-speed shaft rpm section, the overhung load
capacity for a 2060FC2 drive with a 31.39:1 ratio is 600 lb. The actual load is less than
the published capacity and is therefore acceptable.
Locate the center of the load as close to the drive seal cage as practical to minimize the
overhung load and increase bearing life.
Consult Factory for higher overhung load ratings — In many cases, overhung load
capacity in excess of that published is available. Published ratings are based on a
combination of the most unfavorable conditions of rotation, speed, direction of applied
load and drive loading. If the actual load should exceed the published capacity, refer full
details to the Factory; provide complete application information (see page 14), as well
as direction of rotation, location and direction of applied load.
48 (311-110)
© Rexnord 2013
Overhung Loads
LSS Lf Load Location Factors — Double, Triple & Quadruple Reduction ➀
Drive Size
Distance
(in)
2040
2050
2060
2070
2080
2090
2100
2110
2120
2130
1
0.85
0.82
0.82
0.79
0.80
0.78
0.77
0.75
0.76
0.74
1-1/2
0.92
0.88
0.87
0.84
0.84
0.82
0.80
0.79
0.78
0.76
1-3/4
0.96
0.91
0.90
0.86
0.86
0.83
0.82
0.80
0.80
0.77
2
1.00
0.94
0.92
0.89
0.88
0.85
0.83
0.82
0.81
0.79
2-1/2
1.13
1.00
0.97
0.93
0.92
0.89
0.87
0.85
0.84
0.81
2-3/4
1.20
1.06
1.00
0.95
0.94
0.91
0.88
0.86
0.85
0.83
3
1.26
1.11
1.05
0.98
0.96
0.93
0.90
0.88
0.86
0.84
3-1/4
1.33
1.17
1.10
1.00
0.98
0.94
0.92
0.89
0.88
0.85
3-1/2
1.39
1.23
1.15
1.04
1.00
0.96
0.93
0.91
0.89
0.87
4
1.53
1.34
1.24
1.13
1.08
1.00
0.97
0.94
0.92
0.89
4-1/2
–
1.45
1.34
1.22
1.16
1.07
1.00
0.97
0.95
0.92
4-3/4
–
1.51
1.39
1.26
1.20
1.10
1.03
0.98
0.96
0.93
5
–
1.57
1.44
1.30
1.24
1.14
1.06
1.00
0.97
0.95
5-1/4
–
–
1.48
1.34
1.28
1.17
1.10
1.03
0.99
0.96
5-1/2
–
–
1.53
1.39
1.32
1.21
1.13
1.06
1.00
0.97
5-3/4
–
–
–
1.43
1.36
1.24
1.16
1.09
1.03
0.99
6
–
–
–
1.47
1.40
1.28
1.19
1.12
1.06
1.00
6-1/2
–
–
–
1.56
1.48
1.35
1.25
1.18
1.11
1.05
7
–
–
–
–
1.56
1.42
1.32
1.24
1.17
1.11
7-1/2
–
–
–
–
–
1.49
1.38
1.30
1.22
1.16
8
–
–
–
–
–
1.56
1.45
1.36
1.28
1.21
8-1/2
–
–
–
–
–
–
1.51
1.42
1.33
1.26
9
–
–
–
–
–
–
1.57
1.48
1.39
1.32
9-1/2
–
–
–
–
–
–
–
1.54
1.45
1.37
10
–
–
–
–
–
–
–
–
1.50
1.42
10-1/2
–
–
–
–
–
–
–
–
1.56
1.47
11
–
–
–
–
–
–
–
–
–
1.53
11-1/2
–
–
–
–
–
–
–
–
–
1.58
➀ Interpolate for intermediate values. For example Lf is 1.12 for Size 2080 when the distance is 4-1/4 inches.
NOTE: Based on distance from centerline of load to reducer seal cage.
© Rexnord 2013
(311-110) 49
LSS Overhung Load Ratings
Double Reduction — Ratios 1.50 through 4.57 (lb) ➀
Drive Size
Approx. L.S. Shaft
RPM
2040
2050
2060
2070
2080
2090
2340
1.65
2.04
3.61
4.16
5.06
6.89
1900
1.74
1.86
3.78
4.32
5.09
7.22
1720
1.82
2.17
3.92
4.40
5.21
7.44
1560
1.82
1.96
4.01
4.41
4.85
7.64
1400
1.92
2.29
4.15
4.47
4.96
7.79
1280
1.92
2.08
4.21
4.61
5.00
8.09
1150
2.03
2.42
4.36
4.67
5.12
8.25
1040
2.04
2.45
4.42
4.81
5.29
8.59
940
2.15
2.32
4.58
4.87
5.42
8.73
840
2.20
2.66
4.67
5.12
5.14
9.09
760
2.29
2.53
4.84
5.19
5.26
9.25
640
2.38
2.58
5.02
5.59
5.55
9.77
520
2.53
2.73
5.45
6.28
6.55
10.7
420
2.65
3.14
5.75
6.69
6.96
11.5
350
2.92
3.60
6.15
7.11
7.63
12.2
280 ➁
3.10
3.70
6.50
7.70
8.20
13.0
Double, Triple & Quadruple Reduction — Ratios 5.06 through 985.3 (lb) ➀
Drive Size
Approx. L.S.
Shaft RPM
2040
2050
2060
2070
2080
2090
2100
2110
2120
2130
700
1.83
2.53
4.40
5.41
3.93
7.01
8.01
4.63
8.40
11.6
560
1.93
2.68
4.66
5.42
3.95
7.20
8.48
4.90
8.70
12.1
460
2.04
2.83
4.78
5.63
3.90
7.61
8.98
5.18
8.93
12.5
380
2.16
2.99
4.98
5.93
4.13
8.07
9.62
5.71
9.37
13.1
350
2.26
3.12
5.11
6.06
4.72
8.62
9.87
5.70
9.62
14.3
310
2.28
3.17
5.24
6.19
4.37
8.87
10.2
6.24
9.91
13.9
280
2.38
3.30
5.77
6.67
5.15
8.87
10.5
6.06
10.7
14.9
230
2.51
3.50
5.88
6.98
4.80
9.42
11.1
6.65
11.0
15.4
190
2.67
3.70
6.14
7.57
5.46
10.3
11.9
7.13
11.5
16.1
155
2.84
4.02
6.50
8.21
6.35
11.0
12.6
8.04
12.2
17.1
125
3.03
4.37
6.50
8.50
7.48
11.9
13.4
9.06
13.0
18.2
100
3.29
4.74
6.50
8.50
8.90
13.8
14.6
13.4
14.3
19.8
84
3.40
5.12
6.50
8.50
10.2
14.0
15.5
12.4
16.1
22.0
68
3.40
5.25
6.50
8.50
11.0
14.0
16.9
14.5
17.5
22.5
56
3.40
5.25
6.50
8.50
11.0
14.0
17.0
16.8
19.0
22.5
45
3.40
5.25
6.50
8.50
11.0
14.0
17.0
18.5
19.0
22.5
37
3.40
5.25
6.50
8.50
11.0
14.0
17.0
18.5
19.0
22.5
28 ➁
3.40
5.25
6.50
8.50
11.0
14.0
17.0
18.5
19.0
22.5
➀ Published values of overhung load are for loads applied one shaft diameter from the seal cage with a service factor of unity. Where overhung load is proportional to torque (i.e. pinion,
sprocket or sheave applications) an appropriate service factor should be considered in the overhung load calculation.
➁ The last overhung load value in each drive size column applies to all lower output speeds for that drive. Published ratings are based on a combination of the most unfavorable
conditions of loading. For higher ratings, refer full data to Factory.
NOTE: Multiply values listed by 1000. Consult Factory for higher overhung load ratings.
50 (311-110)
© Rexnord 2013
HSS Overhung Load Ratings
Double Reduction (lb) ➀
High-Speed
Shaft
RPM ➁
1170
870
720
580
Drive Size
Nominal
Ratios
Approx.
L.S. Shaft
RPM
2040
2050
5.06
230
10
250
0
6.20
190
0
220
0
With or Without Backstop
2060
2070
Without Backstop ➂
2110
2120
2080
2090
2100
570
10
220
1290
–
–
2130
–
660
20
290
1400
–
–
–
7.59
155
30
440
10
800
620
380
1400
–
–
–
9.30
125
50
500
290
800
440
550
1400
1430
–
–
11.39
100
100
300
540
800
1050
1250
1400
1500
1300
1370
13.95
84
190
410
600
800
1050
1250
1400
1500
1500
1750
17.09
68
350
490
600
800
1050
1250
1400
1500
1500
1750
20.93
56
400
500
600
800
1050
1250
1400
1500
1500
1750
25.63
45
110
500
600
800
1050
1250
1400
1500
1500
1390
31.39
37
160
500
600
800
1050
1250
1400
1500
1500
1750
5.06
175
150
500
0
800
580
1070
1400
–
–
–
6.20
140
130
500
0
800
690
1080
1400
–
–
–
7.59
115
90
500
340
800
1050
1040
1400
–
–
–
9.30
95
40
500
600
800
1050
1210
1400
1500
–
–
11.39
77
100
300
600
800
1050
1250
1400
1500
1500
1750
13.95
62
190
400
600
800
1050
1250
1400
1500
1500
1750
17.09
50
400
480
600
800
1050
1250
1400
1500
1500
1750
20.93
42
400
500
600
800
1050
1250
1400
1500
1500
1750
25.63
34
280
500
600
800
1050
1250
1400
1500
1500
1750
31.39
28
330
500
600
800
1050
1250
1400
1500
1500
1750
5.06
140
240
500
0
800
1050
1250
1400
–
–
–
6.20
115
230
500
0
800
1050
1250
1400
–
–
–
7.59
95
200
500
580
800
1050
1250
1400
–
–
–
9.30
77
30
500
600
800
1050
1250
1400
1500
–
–
11.39
62
90
290
600
800
1050
1250
1400
1500
1500
1750
13.95
50
180
400
600
800
1050
1250
1400
1500
1500
1750
17.09
42
400
480
600
800
1050
1250
1400
1500
1500
1750
20.93
34
400
500
600
800
1050
1250
1400
1500
1500
1750
25.63
28
390
500
600
800
1050
1250
1400
1500
1500
1750
31.39
22
400
500
600
800
1050
1250
1400
1500
1500
1750
5.06
115
350
500
110
800
1050
1250
1400
–
–
–
6.20
95
340
500
190
800
1050
1250
1400
–
–
–
7.59
77
330
500
600
800
1050
1250
1400
–
–
–
9.30
62
20
500
600
800
1050
1250
1400
1500
–
–
11.39
50
90
290
600
800
1050
1250
1400
1500
1500
1750
13.95
42
180
400
600
800
1050
1250
1400
1500
1500
1750
17.09
34
400
480
600
800
1050
1250
1400
1500
1500
1750
20.93
28
400
500
600
800
1050
1250
1400
1500
1500
1750
25.63
22
400
500
600
800
1050
1250
1400
1500
1500
1750
31.39
18
400
500
600
800
1050
1250
1400
1500
1500
1750
➁ For input speeds higher than 1170 rpm, refer to Catalog 311-112.
➂ For high-speed shaft overhung load for Type FC drives with backstop, refer to table on page 54.
NOTE: Consult Factory for higher overhung load ratings.
© Rexnord 2013
(311-110) 51
Triple Reduction (lb) ➀
High-Speed
Shaft
RPM ➁
1170
870
720
580
Drive Size
Nominal
Ratios
Approx.
L.S. Shaft
RPM
2040
2050
38.44
30
270
300
400
47.08
25
270
300
57.66
20
270
70.62
16.5
270
86.50
13.5
105.9
11.0
129.7
2060
2070
2110
2120
2080
2090
2100
270
580
280
700
800
900
2130
800
400
530
580
620
700
800
900
810
300
400
460
580
620
700
800
900
1000
300
400
530
580
620
700
800
900
1000
270
300
400
530
580
620
700
800
900
1000
270
300
400
530
580
620
700
800
900
1000
9.0
270
300
350
400
580
620
700
800
900
1000
158.9
7.5
270
300
210
360
580
620
700
800
900
1000
194.6
6.0
–
–
260
450
–
620
–
–
–
–
38.44
22
270
300
400
460
580
620
700
800
900
790
47.08
18
270
300
400
530
580
620
700
800
900
790
57.66
15
270
300
400
460
580
620
700
800
900
1000
70.62
12.5
270
300
400
520
580
620
700
800
900
1000
86.50
10.0
270
300
400
530
580
620
700
800
900
1000
105.9
8.3
270
300
400
530
580
620
700
800
900
1000
129.7
6.8
270
300
400
530
580
620
700
800
900
1000
158.9
5.5
270
300
200
360
580
620
700
800
900
1000
194.6
4.5
–
–
260
450
–
620
–
–
–
–
38.44
18
270
300
400
530
580
620
700
800
900
800
47.08
15
270
300
400
530
580
620
700
800
900
800
57.66
12.5
270
300
400
460
580
620
700
800
900
1000
70.62
10.0
270
300
400
530
580
620
700
800
900
1000
86.50
8.3
270
300
400
530
580
620
700
800
900
1000
105.9
6.8
270
300
400
530
580
620
700
800
900
1000
129.7
5.5
270
300
400
530
580
620
700
800
900
1000
158.9
4.5
270
300
210
360
580
620
700
800
900
1000
194.6
3.8
–
–
260
450
–
620
–
–
–
–
38.44
15.0
270
300
400
530
580
620
700
800
900
780
47.08
12.5
270
300
400
530
580
620
700
800
900
780
57.66
10.0
270
300
400
470
580
620
700
800
900
1000
70.62
8.3
270
300
400
530
580
620
700
800
900
1000
86.50
6.8
270
300
400
530
580
620
700
800
900
1000
105.9
5.5
270
300
400
530
580
620
700
800
900
1000
129.7
4.5
270
300
400
530
580
620
700
800
900
1000
158.9
3.8
270
300
200
360
580
620
700
800
900
1000
194.6
3.0
–
–
260
450
–
620
–
–
–
–
52 (311-110)
© Rexnord 2013
Quadruple Reduction (lb) ➀
High-Speed
Shaft
RPM ➁
1170
870
720
580
Drive Size
Nominal
Ratios
Approx.
L.S. Shaft
RPM
2050
194.6
6.0
150
–
–
238.4
5.0
150
150
291.9
4.0
150
357.5
3.2
150
437.9
2.7
536.3
2.2
656.8
2060
2070
2080
2090
2100
2110
2120
2130
230
–
470
590
650
340
140
230
240
520
150
650
300
150
160
230
410
520
240
650
530
150
170
230
440
520
300
650
690
150
150
170
230
440
520
590
650
700
150
150
170
230
440
520
590
650
700
1.8
150
150
170
230
440
520
590
650
700
804.5
1.5
150
150
170
230
440
520
590
650
700
985.3
1.2
150
150
170
230
440
520
590
650
700
194.6
4.5
150
–
–
230
–
470
590
650
700
238.4
3.8
150
150
140
230
240
520
150
650
650
291.9
3.0
150
150
160
230
410
520
240
650
590
357.5
2.5
150
150
170
230
440
520
300
650
700
437.9
2.0
150
150
170
230
440
520
590
650
700
536.3
1.6
150
150
170
230
440
520
590
650
700
656.8
1.3
150
150
170
230
440
520
590
650
700
804.5
1.1
150
150
170
230
440
520
590
650
700
985.3
0.90
150
150
170
230
440
520
590
650
700
194.6
3.8
150
–
–
230
–
470
590
650
700
238.4
3.0
150
150
140
230
240
520
150
650
700
291.9
2.5
150
150
160
230
410
520
240
650
590
357.5
2.0
150
150
170
230
440
520
300
650
700
437.9
1.6
150
150
170
230
440
520
590
650
700
536.3
1.3
150
150
170
230
440
520
590
650
700
656.8
1.1
150
150
170
230
440
520
590
650
700
804.5
0.90
150
150
170
230
440
520
590
650
700
985.3
0.75
150
150
170
230
440
520
590
650
700
194.6
3.0
150
–
–
230
–
470
590
650
700
238.4
2.5
150
150
140
230
240
520
150
650
700
291.9
2.0
150
150
160
230
410
520
230
650
590
357.5
1.6
150
150
170
230
440
520
300
650
700
437.9
1.3
150
150
170
230
440
520
590
650
700
536.3
1.1
150
150
170
230
440
520
590
650
700
656.8
0.90
150
150
170
230
440
520
590
650
700
804.5
0.75
150
150
170
230
440
520
590
650
700
985.3
0.60
150
150
170
230
440
520
590
650
700
© Rexnord 2013
(311-110) 53
Double, Triple & Quadruple Reduction with External Backstops (lb) ➀
High-Speed
Shaft
RPM ➁
Nominal
Ratios
Approx.
L.S. Shaft
RPM
Drive Size
2100
2110
2120
2130
FC2 Double Reduction
1170
870
720
580
5.06
230
560
–
–
–
6.20
190
630
–
–
–
7.59
155
630
–
–
–
9.30
125
630
710
–
–
11.39
100
630
710
650
680
13.95
84
630
710
720
870
17.09
68
630
710
720
870
20.93
56
630
710
720
870
25.63
45
630
710
720
700
31.39
37
630
710
720
870
5.06
175
615
–
–
–
6.20
140
630
–
–
–
7.59
115
630
–
–
–
9.30
95
630
710
–
–
11.39
77
630
710
720
870
5.06
140
630
–
–
–
6.20
115
630
–
–
–
7.59
95
630
–
–
–
9.30
77
630
710
–
–
11.39
62
630
710
720
870
5.06
115
630
–
–
–
6.20
95
630
–
–
–
7.59
77
630
–
–
–
9.30
62
630
710
–
–
11.39
50
630
710
720
870
FC3 Triple Reduction
1170
870
38.44
30
280
330
400
360
47.08
25
280
330
400
450
38.44
22
280
330
400
360
47.08
19
280
330
400
380
57.60
15
280
330
400
450
194.6
6.0
230
260
240
FC4 Quadruple Reduction
1170
175
238.4
5.0
190
60
260
210
291.9
4.0
190
95
260
240
357.5
3.2
190
120
260
280
437.9
2.7
190
230
260
280
➀ Published values of overhung load are for loads applied one shaft diameter from the backstop with a service factor of unity. Where overhung load is proportional to torque (i.e. pinion,
sprocket or sheave applications) an appropriate service factor should be considered in the overhung load calculation. Refer to Factory for OHL ratings of drives with both a fan and an
external backstop.
54 (311-110)
© Rexnord 2013
LSS Thrust Loads
Thrust Loads — External thrust loads are often imposed upon gear drive bearings by
agitators, mixers and similar equipment through solid couplings and also some flexible
couplings. Calculate the direction and magnitude of the thrust and check the result
against the tabulated thrust value.
CONCENTRIC SHAFT
HORIZONTAL
OUTWARD
OUTWARD
INWARD
INWARD
TYPE FZ
TYPE FC
LSS Thrust Load Capacity
Ratios 1.50 through 4.57 (lb) ➀➁
Approx.
L.S. Shaft
RPM
2040
2050
2060
2070
2340
1900
1720
1560
1400
1280
1150
1040
940
840
760
640
520
420
350
280 ➂
1.80
1.80
1.80
1.80
1.80
1.80
1.80
1.80
1.80
1.80
1.80
1.80
1.80
1.80
1.80
1.80
2.14
1.93
2.22
2.29
2.30
2.08
2.30
2.30
2.30
2.30
2.30
2.30
2.30
2.30
2.30
2.30
3.25
3.38
3.50
3.50
3.50
3.50
3.50
3.50
3.50
3.50
3.50
3.50
3.50
3.50
3.50
3.50
3.88
3.93
3.75
3.74
3.48
3.82
3.51
3.90
3.55
4.14
3.82
4.90
4.90
4.90
4.90
4.90
Drive Size
Ratios 5.06 through 985.3 (lb) ➀➁
Approx.
L.S. Shaft
RPM
2040
2050
2060
2070
2080
2090
2100
2110
2120
2130
700
560
460
380
350
310
280
230
190
155
125
100
84
68
56
45
37
28 ➂
1.79
1.80
1.80
1.80
1.80
1.80
1.80
1.80
1.80
1.80
1.80
1.80
1.80
1.80
1.80
1.80
1.80
1.80
2.30
2.30
2.30
2.30
2.30
2.30
2.30
2.30
2.30
2.30
2.30
2.30
2.30
2.30
2.30
2.30
2.30
2.30
3.50
3.50
3.50
3.50
3.50
3.50
3.50
3.50
3.50
3.50
3.50
3.50
3.50
3.50
3.50
3.50
3.50
3.50
4.90
4.90
4.90
4.90
4.90
4.90
4.90
4.90
4.90
4.90
4.90
4.90
4.90
4.90
4.90
4.90
4.90
4.90
3.41
2.73
2.67
3.06
4.22
2.99
3.35
3.28
3.79
4.50
5.38
5.40
5.40
5.40
5.40
5.40
5.40
5.40
4.37
4.45
4.70
4.98
5.38
5.53
5.48
5.82
6.46
6.86
7.49
8.00
8.00
8.00
8.00
8.00
8.00
8.00
6.06
6.42
6.80
7.27
7.46
7.76
7.94
8.42
8.91
9.20
9.20
9.20
9.20
9.20
9.20
9.20
9.20
9.20
2.48
2.62
2.77
3.07
3.05
3.37
3.24
3.57
3.84
4.36
4.95
7.87
6.99
8.40
10.3
10.3
10.3
10.3
6.53
6.61
6.53
6.77
8.04
7.10
8.13
8.04
8.34
8.73
9.29
10.3
10.3
10.3
10.3
10.3
10.3
10.3
9.95
10.1
10.4
10.8
11.3
11.3
11.3
11.3
11.3
11.3
11.3
11.3
11.3
11.3
11.3
11.3
11.3
11.3
Drive Size
➀ Thrust inward or outward. Multiply values listed by 1000.
➁ Thrust capacities are for pure thrust loads. If thrust and overhung loads are applied simultaneously, or loads exceed these capacities, refer to Factory.
➂ The last thrust capacity value in each drive size column applies to all lower output speeds for that drive.
© Rexnord 2013
(311-110) 55
Exact Ratios
Double Reduction ➀
Approx.
L.S. Shaft
RPM
2040
2050
2060
2070
2080
2090
2100
2110
2120
2130
1.50
1.465
1.476
1.548
–
1.561➀
1.504
–
–
–
–
1.84
1.820
1.822
1.833
1.783
1.887
1.801
–
–
–
–
2.03
2.057
2.028
2.027
2.062
2.055
2.089
–
–
–
–
2.25
2.191
2.252
2.295
2.197
2.299
2.257
–
–
–
–
2.49
2.475
2.504
2.537
2.541
2.504
2.503
–
–
–
–
2.76
2.723
2.702
2.827
2.683
2.792
2.756
–
–
–
–
3.05
3.076
3.095
3.126
3.103
3.041
3.137
–
–
–
–
3.38
3.279
3.283
3.400
3.211 ➀
3.262
3.428
–
–
–
–
3.74
3.705
3.714
3.759
3.713
3.553 ➀
3.830
–
–
–
–
4.13
4.120
4.001
4.130
3.954 ➀
4.067
4.164
–
–
–
–
4.57
4.655
4.512
4.567
4.573
4.430
4.763 ➀
–
–
–
–
5.06
4.929
4.980
4.998
4.996
5.161
5.050
5.071
–
–
–
6.20
6.122
6.147
6.256
6.155
6.290
6.050
6.417
–
–
–
7.59
7.368
7.598
7.708
7.517
7.638
7.581
7.641
–
–
–
9.30
9.158
9.119
9.269
8.996
8.923 ➀
9.257
9.218
9.463
–
–
11.39
11.03
11.08
11.26
11.08
11.13
11.51
11.58
11.46
11.54
11.85
13.95
13.86
13.50
13.72
13.50
13.67
13.98
14.01
13.94
14.00
14.42
17.09
16.83
16.65
17.19
17.33
17.34
16.78
17.29
17.01
17.37
17.15
20.93
19.81 ➀
20.56
21.13
20.54
20.98
21.01
21.58
20.76
21.12
21.25
25.63
25.25
25.27
25.63
25.12
25.17
25.66
25.55
25.39
25.91
25.36
31.39
29.43 ➀
30.16
31.69
31.08
31.15
31.15
31.21
31.12
31.89
30.89
Drive Size
Triple Reduction ➀
Approx.
L.S. Shaft
RPM
2040
2050
2060
2070
2080
2090
2100
2110
2120
2130
38.44
38.08
37.57
38.46
37.83
38.88
39.51
40.24 ➀
38.38
39.36
39.60
47.08
45.86
45.64
46.65
46.27
47.23
48.23
48.39
46.56
47.71
47.26
57.66
57.62
55.63
56.62
56.63
57.56
57.53
57.29
56.56
57.02
57.30
70.62
69.99
68.61
70.64
71.14
69.64
69.86
71.64
68.94
68.05
68.47
86.50
82.37 ➀
84.70
85.69
86.43
87.65
85.18
88.36
86.02
88.15
81.72 ➀
105.9
105.0
104.1
106.5
101.7
107.7
103.4
104.6
104.9
107.0
105.9
129.7
125.0
127.7
131.3
129.6
130.4
129.7
133.8
128.2
128.9
128.5
158.9
159.4
156.9
156.7
151.1
156.4
157.5
158.4
155.7
158.2
154.8
194.6
–
–
190.1
184.8 ➀
–
193.6
–
–
–
–
Drive Size
Quadruple Reduction ➀
Approx.
L.S. Shaft
RPM
2050
194.6
187.5
238.4
231.5
291.9
286.1
357.5
Drive Size
2060
2070
2080
2090
2100
2110
2120
2130
–
–
239.6
236.6
192.3
–
202.3
192.9
197.7
199.0
237.8
236.7
243.7
234.3
240.1
296.3
237.4
292.6
291.5
284.5
306.1
285.6
292.7
343.3
288.4
363.2
358.7
360.7
351.9
371.9
352.3
361.0
351.4
437.9
536.3
417.1
449.4
443.8
436.4
431.4
437.6
434.9
445.7
433.5
508.3 ➀
543.0
542.7
523.5
533.7
518.1
531.7
535.7
656.8
535.1
627.0
649.5
641.4
638.7
644.9
660.4
653.6
657.2
643.3
804.5
774.1
795.9
785.9
772.8
783.1
844.5
791.4
783.6
782.8
985.3
951.5
965.5
961.2
927.2 ➀
945.2
999.9
967.6
961.3
940.9
➀ Except where noted with an ➀, exact ratios are within ±4% for double and triple reduction, and ±5% of quadruple reduction nominal ratios.
56 (311-110)
© Rexnord 2013
Availability & Compatibility of Accessories
Drive Sizes
2040 & 2050
Motor Mount
Motor Bracket
C-Face Adapter
Motor Plate
Slide Base
Slide Rails
Internal Backstop
...
...
...
OK ➆
...
OK
...
...
OK
...
OK
OK
...
OK
...
OK
OK
...
OK➈
OK
OK
...
OK
OK
Motor Mount
Motor Bracket
...
C-Face Adapter
...
...
Motor Plate
...
...
...
Slide Base
OK ➆
OK
OK
...
Slide Rails
...
...
...
OK➈
...
Internal Backstop
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
Reliability
Drive Sizes
2060 & 2130
OK
Motor
Mount
Motor Mount
C-Face
Adapter
Motor
Plate
Slide
Base
Slide
Rails
...
...
...
OK ➆
...
...
Motor Bracket
...
C-Face Adapter
...
...
...
Motor Plate
...
...
...
OK
OK
...
OK
OK
OK
OK
OK
Shaft
Fans
Electric
Fan –
Right
Hand
➇
Electric
Fan –
Left
Hand
➇
Cooling
Tubes
OK
...
OK ➂
OK ➃
OK
OK
...
External Internal
Backstop Backstop
➀
➁
Motor
Bracket
Ext.
Pump & Backstop
Reliability
Cooler
& Fan
...
OK
...
OK
OK
OK ➉
OK
OK
OK
OK
...
OK
...
...
OK
...
OK
OK
OK
OK
...
OK
...
OK➈
OK
OK
OK
OK
OK
OK
OK
OK
OK
...
OK
OK
OK
OK ➄
OK ➄
...
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
...
OK
OK ➅
OK ➅
OK
OK
...
OK
OK
OK
OK
OK
OK
...
OK
Slide Base
OK ➆
Slide Rails
...
...
...
OK ➈
...
External Backstop➀
...
OK
...
OK
OK
OK
Internal Backstop➁
OK
OK
OK
OK
OK
OK
...
Shaft Fan
...
OK ➉
...
OK
OK
OK
OK
OK
OK ➂
OK
OK
OK
OK ➄
OK
OK ➅
OK
...
Electric Fan – Left Hand➇
OK ➃
OK
OK
OK
OK ➄
OK
OK ➅
OK
...
...
Cooling Tubes
OK
OK
OK
OK
...
OK
OK
OK
...
...
...
Pump & Cooler
OK
OK
OK
OK
OK
OK
OK
OK
...
...
...
...
Ext. Backstop & Fan
...
...
...
OK
OK
OK
...
...
...
...
...
...
...
Reliability
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
...
OK
➇
➈
➉
OK
...
Electric Fan – Right Hand➇
➀
➁
➂
➃
➄
➅
➆
Reliability
...
OK
...
...
...
...
OK
...
...
...
...
OK
...
...
...
OK
...
...
...
...
OK
OK
OK
External backstops used only on 2100 thru 2130.
Internal backstops used only on 2040 thru 2090.
Motor mount mounted at 9 o’clock position only.
Motor mount mounted at 3 and 12 o’clock positions only.
Drive sizes 2080 thru 2130 only.
Electric fan is not available on drives with #60 backstop.
Must check for clearance between L.S. shaft sprocket and motor mount. When motor mount used in 3 & 9 o’clock position, must check for clearance between the motor mount and
slide base Drive Sizes 2040 thru 2080 only.
Left and right hand as viewed when facing H.S. shaft.
Use of slide rails requires a motor plate.
Bolted brackets (designed for 326T frame and smaller) cannot be used with shaft fans due to interference.
Will work when 3 & 9 o’clock positions are opposing reliability package on all. 12 o’clock position will not work without modification.
© Rexnord 2013
(311-110) 57
Dimensions and Accessories
Double, Triple & Quadruple Reduction Dimensions
Type FC— Sizes 2040 and 2050 / Dimensions–Inch
H.S. SHAFT
KEY
VENTED DIPSTICK &
OIL FILLER PLUG
C
USABLE
NA
N
LENGTH
X
CLEARANCE
USABLE
R
LENGTH
L.S. SHAFT
KEY
UA
R
1.4
U
O
D
V
Q
V
F
OIL DRAIN
BOTH ENDS
G
W
J
4 - HOLES FOR H - DIA
SAE GRADE 5 BOLTS
B
E
J
E
A
Dimensions (in)
Drive
Size ➀
A
B
D
E
F
G
H
J
N
O
Q
R
Low-Speed Shaft ➁
U
Key
V
W➂
W/O With
X
Y
Z
Max
AA
Wt
(lb)
Ave
2040 15.00 7.90
8.50
6.60
6.10
0.80 0.750
4.3
4.00 12.92 6.86
5.9 2.0000 0.500 x 0.500 x 3.50 0.90 3.54 3.24 7.50 2.90 2.06 17.98 200
2050 16.60 8.98
9.60
7.30
7.10
1.00 0.875
4.5
5.00 14.52 8.10
6.7 2.5000 0.625 x 0.625 x 4.50 0.94 4.16 3.92 8.70 3.40 2.90 18.98 340
Double Reduction — FC2/FZ2
High-Speed Shaft ➁
NA
UA
Key
Triple Reduction — FC3/FZ3
NA
UA
Key
Quadruple Reduction — FC4/FZ4
NA
UA
Key
Drive Size
➀
C
2040
18.44
2.76
1.3750
0.312 x 0.312 x 2.50
18.44
2.76
1.3750
0.312 x 0.312 x 2.50
–
–
–
–
2050
21.54
3.26
1.6250
0.375 x 0.375 x 3.00
21.54
3.26
1.6250
0.375 x 0.375 x 3.00
19.98
2.00
1.0000
0.250 x .0250 x 1.50
C
C
➀ Dimensions are for reference only and are subject to change without notice unless certified. Drives are for horizontal floor-mounted operation unless specifically stated otherwise.
Refer to Factory for other mountings.
➁ Shaft diameters under 3" are held to limits of +.0000", -.0005". Shaft keyseat depth is one-half of key height.
➂ Dimension W is clearance with and without (W/O) internal backstop. For drive with backstop, indicate low-speed shaft rotation when viewing drive from the end of the low-speed shaft.
58 (311-110)
© Rexnord 2014
Type FZ — Sizes 2040 and 2050 / Dimensions–Inch
DIMENSIONS ON PAGE 57
(CA IN TABLE BELOW)
SHAFT
CA
VENTED DIPSTICK &
OIL FILLER PLUG
C
GAP
GUARD
X
CLEARANCE
USABLE
N
R
R
LENGTH
L.S. SHAFT
KEY
1.4
U
O
D
V
Q
V
F
OIL DRAIN
BOTH ENDS
G
W
SAE GRADE 5 BOLTS
B
J
E
E
J
A
Dimensions (in)
Drive Size
Average
NEMA
Weight of TMax.
& U Frame
Drive Only Size
➂➃
(lb) ➁
CA – Approximate Overall Length With Motor and Type T Coupling ➀
Motor Frame Size ➂
143T
145T
182T
184T
213T
215T
254T
256T
284TS
286TS
324TS
326TS
35.0
36.2
39.9
41.5
43.9
43.9
–
–
37.5
39.0
42.4
44.2
46.2
46.2
48.8
48.8
Open Motors
2040
200
286
33.9
33.9
33.9
33.9
2050
340
326
36.2
36.2
36.2
36.2
TEFC Motors
2040
200
286
30.7
31.2
33.2
34.2
39.0
39.0
45.2
45.2
46.3
46.3
–
–
2050
340
326
33.7
34.2
36.3
37.3
41.6
41.6
47.8
47.8
48.9
48.9
52.9
52.9
Approximate Weights
Falk Motor Brackets/Couplings and Motors (lb)
HP
Frame ➂
Drive Size
1
143T
1-1/2
145T
2
145T
3
182T
5
184T
7-1/2
213T
10
215T
15
254T
20
25
30
40
256T
284T
286T
324T
Bracket & Coupling Weights
50
326T
60
364T
75
365T
100
404T
125
405T
150
444T
200
445T
2040-2070
60
60
60
60
60
65
65
80
80
100
100
110
110
165
180
270
270
–
–
2080-2090
65
65
65
65
75
80
80
95
100
115
115
120
120
165
180
270
285
340
–
2100-2130
70
70
70
85
85
90
90
110
110
120
120
130
135
310
310
375
375
445
485
1750 RPM Motor Weights
TEFC General
Purpose Motor
TEFC High
Efficiency Motor
30
35
40
60
80
120
165
230
265
360
380
490
526
650
780
1050
1505
1530
1700
30
45
55
70
85
125
170
235
300
450
440
560
650
785
870
1150
1520
1710
1850
Open Motor
30
35
35
60
70
120
145
190
215
255
315
370
400
575
640
810
895
1195
1375
➀ CA dimensions are approximate and may vary with motor manufacturer.
➁ Weight shown is for Type FC drive. For Type FZ drive weight, add average drive weight to approximate weight.
➂ Brackets for Sizes 2040 thru 2050 will accept either T, TS, U or US frame motors. Do not exceed the gear drive ratings shown in the selection tables. Standard length and semistandard length blank bracket dimensions are covered in Engineering 317-315.
➃ Refer to pages 6 and 7 for instructions when using other than T-frame motors.
© Rexnord 2014
59 (311-110)
Type FC — Sizes 2060 to 2130 / Dimensions–Inch
DRIVE WITH
SHAFT FAN
H.S. SHAFT
KEY
NA
USABLE
LENGTH
VENTED
DIPSTICK
LIFTING LUGS:
SIZES 2100 THRU 2130
OIL FILLER PLUG
USABLE
C
NA
LENGTH
2.6
X
CLEARANCE
USABLE
N
LENGTH
R
R
1.3
U
UA
O
D
OIL DRAIN
BOTH ENDS
G
W
V
V
F
K
K
J
SAE GRADE 5 BOLTS
Q
B
E
E
J
A
Dimensions (in)
Drive
Size ➀
A
B
D
E
F
G
H
J
K
N
O
Q
R
U
Low-Speed Shaft ➁
Key
V
W➃
W/O With
X
Y
Z
Average
Wt (lb)
2060 18.40 ➄ 12.00 10.60 8.20 10.00 0.66 1.000 4.2
➂
5.50 15.60 8.00
6.9 2.750
0.625 x 0.625 x 5.00
1.0
4.83 4.42 11.2 5.64 4.92
340
2070 21.00 ➄ 13.70 11.66 9.30 11.30 0.66 1.125 4.5
➂
6.50 17.16 9.20
7.9 3.250
0.750 x 0.750 x 6.00
1.2
5.78 5.21 12.3 6.60 5.64
480
2080 23.00 ➄ 15.80 12.78 10.20 13.20 0.78 1.250 5.5
➂
7.00 18.98 10.00 8.7 3.500
0.875 x 0.875 x 6.50
1.3
6.25 5.84 13.4 6.96 6.70
680
2090
17.50 15.74 11.40 14.30 0.90 1.500 7.0
➂
8.00 23.06 11.50 9.6 4.000
1.000 x 1.000 x 7.00
1.6
7.51 6.95 15.6 8.00 7.20
950
2100 27.60 ➄ 19.16 17.40 12.20 14.96 1.00 1.500 9.0
26.00
7.0
9.00 26.00 13.14 10.7 4.500
1.000 x 1.000 x 8.50
2.1
9.54
1320
2110
29.40
21.48 19.50 13.10 17.28 1.00 1.500 9.0
7.0
9.50 28.80 13.72 11.6 5.000
1.250 x 1.250 x 8.50
2.1 10.22 ➃ 17.2 9.90 8.06
1560
2120
32.48
23.60 21.90 14.44 18.80 1.24 1.750 9.0
7.0 10.00 32.50 14.58 12.6 5.500
1.250 x 1.250 x 9.00
2.4 10.68 ➃ 19.0 10.62 9.36
2210
2130
34.00
25.10 24.70 15.20 19.30 1.24 1.750 9.0
7.0 11.00 36.20 16.16 13.5 6.000 1.500 x 1.500 x 10.00
2.9 11.78 ➃ 20.4 11.50 9.52
2900
Double Reduction — FC2
NA
W/O
With
Shaft
Shaft
UA
Key
Fan
Fan
Triple Reduction — FC3
NA
W/O
With
Shaft
Shaft
UA
Key
Fan
Fan
➃ 15.9 9.06 7.56
Quadruple Reduction — FC4
Drive
Size ➀
C
2060
24.94
3.68
2.38
1.8750 0.500 x 0.500 x 3.25 24.32
3.26
–
1.5000 0.375 x 0.375 x 3.00 23.56
2.50
1.2500 0.250 x 0.250 x 2.25
2070
28.34
4.26
2.94
2.1250 0.500 x 0.500 x 3.75 27.28
3.18
–
1.7500 0.375 x 0.375 x 3.00 26.54
2.44
1.3750 0.312 x 0.312 x 2.50
2080
31.68
4.50
3.16
2.2500 0.500 x 0.500 x 4.00 30.64
3.68
–
2.0000 0.500 x 0.500 x 3.50 29.90
2.95
1.6250 0.375 x 0.375 x 3.00
2090
35.08
4.76
3.12
2.5000 0.625 x 0.625 x 4.00 33.66
3.88
–
2.0000 0.500 x 0.500 x 3.50 32.92
3.26
1.6250 0.375 x 0.375 x 3.00
2100
38.50
5.26
3.35
2.7500 0.625 x 0.625 x 4.75 37.14
4.00
2.34
2.1250 0.500 x 0.500 x 3.50 36.66
3.76
1.8750 0.500 x 0.500 x 3.25
2110
42.02
5.62
3.55
3.0000 0.750 x 0.750 x 5.00 40.10
4.00
2.58
2.1250 0.500 x 0.500 x 3.50 39.62
3.50
1.8750 0.500 x 0.500 x 3.00
2120
45.38
6.26
4.09
3.2500 0.750 x 0.750 x 5.50 43.40
4.26
2.54
2.2500 0.500 x 0.500 x 3.75 42.62
3.62
2.0000 0.500 x 0.500 x 3.25
2130
48.58
6.76
4.51
3.5000 0.875 x 0.875 x 6.00 45.98
4.26
2.54
2.2500 0.500 x 0.500 x 3.75 45.20
3.62
2.0000 0.500 x 0.500 x 3.25
C
C
NA
UA
Key
➀ Dimensions are for reference only and are subject to change without notice unless certified. Drives are for horizontal floor-mounted operation unless specifically stated otherwise.
Refer to Factory for other mountings.
➁ Shaft diameters under 3" are held to limits of +.0000", -.0005". Shaft diameters 3" and over are held to limits of +.000", -.001". Shaft keyseat depth is one-half of key height.
➂ Drive Sizes 2060 thru 2090 have foundation pads full length of base.
➃ Dimension W is clearance with and without (W/O) internal backstop. For Sizes 2100 thru 2130FC, an external backstop is mounted on an extended high-speed shaft; see 315-810 for
details. For drive with backstop, indicate low-speed shaft rotation when viewing drive from the end of the low-speed shaft.
➄ Allow clearance for the following bracket widths (Type FZ): Size 2060 with 364 and 365 frame motors, 19.88; Size 2070 with 404 and 405 frame motors, 22.78; Size 2080 with 444 and
445 frame motors, 25.06; Size 2100 with 364 and 445 frame motors, 28.50.
60 (311-110)
© Rexnord 2014
Type FZ — Sizes 2060 to 2130 / Dimensions–Inch
DIMENSIONS ON PAGE 59
(CA IN TABLE BELOW)
OIL FILLER PLUG
LIFTING LUGS:
SIZES 2100 THRU 2130
VENTED DIPSTICK
CA
SHAFT
GAP
C
GUARD
N
2.6
X
CLEARANCE
USABLE
R
R
1.3
LENGTH
U
O
D
G
W
V
F
K
V
K
Q
SAE GRADE 5 BOLTS
B
OIL DRAIN
BOTH ENDS
J
E
J
E
A
Dimensions (in)
Drive
Size
Average
Weight
of Drive
Only
(lb) ➁
Max.
NEMA
T&U
Frame
Size ➂ ➃
CA – Approximate Overall Length With Motor and Type T Coupling ➀
Motor Frame Size ➂
143T
145T
182T
184T
213T
215T
254T
256T
284TS 286TS 324TS 326TS 364TS 365TS 404TS 405TS 444TS 445TS
Open Motors
2060
340
365
39.2
39.2
39.2
39.2
40.8
42.4
45.5
47.3
49.0
49.0
51.8
51.8
52.4
52.6
–
–
–
–
2070
480
405
42.0
42.0
42.0
42.0
43.2
45.7
49.0
50.7
51.9
52.0
54.7
54.7
55.2
56.0
58.6
59.8
–
–
2080
680
445
44.6
44.6
44.6
44.6
46.7
48.2
52.5
54.1
54.4
55.3
58.0
58.0
58.4
59.8
61.6
62.9
–
–
2090
950
445
47.6
47.6
47.6
47.6
49.6
51.1
54.4
57.7
57.4
58.7
60.9
61.3
61.8
62.8
64.8
66.3
69.7
71.3
2100
1320
445
50.9
50.9
51.5
51.5
53.0
54.6
57.8
59.5
60.7
62.5
63.5
64.9
66.3
66.6
69.7
69.8
74.7
74.8
2110
1560
445
53.9
53.9
54.5
54.5
55.9
57.5
60.7
62.5
63.7
63.7
66.7
68.2
69.3
69.7
72.7
73.3
77.7
78.4
2120
2210
445
56.6
56.6
56.6
56.6
58.6
61.0
63.9
65.8
66.2
67.0
69.7
69.7
72.3
73.6
75.6
76.8
80.6
81.9
2130
2900
445
–
59.3
59.3
59.3
61.3
62.8
66.6
68.7
68.9
69.7
72.4
72.4
74.9
76.6
78.3
79.7
83.8
85.0
2060
340
365
36.5
36.9
39.0
40.0
45.2
45.2
50.7
50.7
53.0
53.0
55.8
55.8
57.4
–
–
–
–
–
2070
480
405
38.8
39.3
42.4
43.4
47.3
47.3
53.8
53.8
55.9
55.9
58.7
58.7
60.4
60.3
–
–
–
–
2080
680
445
42.0
42.5
44.6
46.4
50.7
50.7
57.3
57.3
59.0
59.0
62.0
62.0
63.9
63.9
68.2
–
–
–
2090
950
445
45.1
45.5
47.6
49.4
53.8
53.8
59.3
59.3
61.6
62.2
62.2
65.6
67.2
67.2
71.3
–
–
–
2100
1320
445
–
50.0
51.6
52.6
57.1
57.1
62.6
62.6
65.0
65.0
67.8
67.8
70.6
70.6
74.5
74.5
–
–
2110
1560
445
–
–
54.7
55.7
59.6
59.6
65.7
65.7
67.9
67.9
70.7
70.7
72.3
72.3
78.0
78.0
83.4
–
2120
2210
445
–
–
57.6
58.6
62.6
62.6
68.9
68.9
71.0
71.0
73.8
73.8
75.4
75.4
80.1
80.1
86.7
–
2130
2900
445
–
–
–
61.2
65.2
65.2
70.9
70.9
73.6
73.6
76.3
76.3
78.0
78.0
82.7
82.7
87.6
87.6
TEFC Motors
➀ CA dimensions are approximate and may vary with motor manufacturer.
➁ Weight shown is for Type FC drive. For Type FZ drive weight, add average drive weight to approximate weight at bottom of page 59.
➂ Brackets will accept either T, TS, U or US frame motors. Do not exceed the gear drive ratings shown in the selection tables. Standard length and semi-standard length blank bracket
dimensions are covered in Engineering 317-315.
➃ Refer to pages 6 and 7 for instructions when using other than T-frame motors.
© Rexnord 2014
61 (311-110)
Motor Mounts
Type MM — Sizes MM2040 and MM2050 / Dimensions–Inch
Standard Assemblies
Assemblies are viewed from high-speed end of drive. For 3 and 9 o’clock assemblies,
refer to ➄ footnote below to determine dimensions FA, GA, HA and JA. Refer to
page 58 for drive dimensions.
QA
QA
QA
H.S.
SHAFT
5°
9 O’CLOCK
5°
H.S.
SHAFT
12 O’CLOCK
3 O’CLOCK
Space-saving Type MM motor mounts are designed for use on UltraMax Type FC drives
when input through a belt drive is required. The motor mount can be top, left or right
side‑mounted, and allows for quick belt installation and tensioning.
OSHA GUARD
KA
MA
SHIM IF
REQUIRED
GA
MA
FA
JA
H.S.
SHAFT
HA
LA
REFER TO STD.
ASSEMBLIES ABOVE
H.S.
SHAFT
H.S.
SHAFT
L.S.
SHAFT
Size 2040 & 2050
L.S.
SHAFT
Size 2040 … 56-284T & U
Size 2050 … 250-320T & U
Size 2050 … 56-210T & U
Dimensions (in)
Minimum and Maximum Shaft Centers
56
MM2050
Drive
Size ➀
140
180
210
250
320
280
3
9
12
12.60
8.32
2.00
2.00
0
18.31 21.10
1.84
10.31 13.10
8.32
2.00
2.00
0
14.06 17.00 14.06 17.00 15.06 18.00 15.82 18.76 16.82 19.76 17.56 20.50 18.56 21.50
2.14
10.56 13.50
9.30
2.34
2.34
0
FA
GA
FA
GA
FA
GA
FA
GA
FA
GA
–
–
–
–
56 thru 210
–
–
–
250 thru 284
Motor
KA
LA
Mount
Wt (lb)
–
–
250 thru 320
Motor
KA
LA
Mount
Wt (lb)
LA
Motor
Mount
Wt (lb)
MM2040 13.00
-2.28 ➃
55
14.00
2.02
70
–
–
MM2050 15.00
–
60
–
–
–
16.00
2.72
KA
–
–
–
GA
–
–
PA
Dimension QA Std
Assemblies Clock
Positions
9.60
GA
13.10 16.10 13.10 16.10 14.10 17.10 14.86 17.86 15.86 18.86 16.60 19.60
FA
JA
Max.
1.84
FA
MM2040
3&9➄
HA
O’clock
FA & GA Min.
Addition
12 O’clock Mounting ➁ ➄
Drive Size
➀
Dimension MA
320 ➂
KA
LA
Motor
Mount
Wt (lb)
–
16.00
5.27
118
12.68
13.18
12.68
11.92
11.16
10.68
10.22
90
–
–
–
15.28
15.78
15.28
14.54
13.78
13.28
12.78
56
140
180
210
250
280
320
➀ Dimensions are for reference only and are subject to change without notice unless certified.
➁ When determining belt length for minimum shaft centers, follow the belt manufacturer’s installation allowance recommendations and also provide for future belt tensioning. Motors
may be shimmed up to 1.5".
➂ Motor mount extends 0.56" below Size 2040 with 320 frame when mounted in 3 and 9 o’clock positions.
➃ Measure (–) LA to left of shaft end instead of as shown; shaft extends beyond bracket.
➄ To determine shaft centers for 3 & 9 o’clock mountings, add amount shown in the “3 & 9 o’clock Addition” column to the 12 o’clock FA & GA dimensions. Dimensions HA and JA will
increase the same amounts.
How to Order
2. Motor make — horsepower and type.
Your nearby Rexnord representative or authorized distributor will be pleased to analyze
your new or existing application requirements and recommend the most efficient and
economical motor mount selections. At the same time, if you wish, his wide experience
in the field of power transmission qualifies him to examine your installation and perhaps
point out additional ways to increase efficiency and reduce cost with other Rexnord
precision products.
4. Required belt centers. If not known, the motor mount will be selected with minimum
belt centers (Dimension FA above) based on information from Steps 1 thru 3.
The following information is required to make proper selection:
5. Clock position — specify preferred mounting arrangement.
3. NEMA motor frame size. Check dimension table to make certain motor mount is
available for your motor frame size.
1. Rexnord Drive — size and type as shown on nameplate or from selection tables in
this catalog.
62 (311-110)
© Rexnord 2014
Motor Mounts
Type MM — Sizes MM2060 to MM2130 / Dimensions–Inch
Standard Assemblies
Assemblies are viewed from high speed end of drive. For 3 and 9 o’clock assemblies,
refer to ➄ footnote below to determine dimensions FA, GA, HA and JA. Refer to
page 60 for drive dimensions.
(+)QA
(+)QA
QA
H.S.
SHAFT
(-)QA
NOTE: Motor mounts are not available for drive Sizes 2100 thru 2130 with external
backstops or drive Sizes 2060 thru 2130 with shaft fans.
9 O’CLOCK
12 O’CLOCK
H.S.
SHAFT
(-)QA
3 O’CLOCK
Space-saving Type MM motor mounts are designed for use on UltraMax Type FC drives
when input through a belt drive is required. The motor mount can be top, left or right
side‑mounted, and allows for quick belt installation and tensioning.
OSHA GUARD
SHIM IF
REQUIRED
MA
MA
KA
SUPPORT:
250-404T
GA
FA
JA
LA
H. S.
SHAFT
HA
PA
REFER TO STD.
ASSEMBLIES ABOVE
H. S.
SHAFT
Figure 1
H. S.
SHAFT
Size 2060 - 2130
Figure 2
L. S.
SHAFT
Size 2060-2100 … 140-210T & U ➁
Size 2110-2130 … 140-400T & U ➁
L. S.
SHAFT
Size 2060-2100 … 250-400T & U
(Size 2060 Max. U-Frame is 404)
Dimensions (in)
Minimum and Maximum Shaft Centers
Motor
Mount &
Drive Size
➀
MM2060
MM2070
MM2080
MM2090
MM2100
MM2110
MM2120
MM2130
Drive
Size ➀
MM2060
MM2070
MM2080
MM2090
MM2100
MM2110
MM2120
MM2130
12 O’clock Mounting ➂ ➄
140
180
210
250
280
320
360
400
FA
GA
FA
GA
FA
GA
FA
GA
FA
GA
FA
GA
FA
GA
FA
GA
16.42
16.92
17.82
18.94
21.32
22.02
21.72
22.62
20.02
20.52
21.42
22.54
24.92
25.62
25.32
26.22
17.42
17.92
18.82
19.94
22.32
23.02
22.72
23.62
21.02
21.52
22.42
23.54
25.92
26.62
26.32
27.22
18.18
18.68
19.58
20.70
23.08
23.78
23.48
24.38
21.78
22.28
23.18
24.30
26.68
27.38
27.08
27.98
19.18
19.68
20.58
21.70
24.08
24.78
24.48
25.38
22.78
23.28
24.18
25.30
27.68
28.38
28.08
28.98
19.92
20.42
21.32
22.44
24.82
25.52
25.22
26.12
23.52
24.02
24.92
26.04
28.42
29.12
28.82
29.72
20.92
21.42
22.32
23.44
25.82
26.52
26.22
27.12
24.52
25.02
25.92
27.04
29.42
30.12
29.82
30.72
22.60
23.10
23.76
24.88
27.26
27.96
27.66
28.56
25.52
26.02
26.92
28.04
30.42
31.12
30.82
31.72
23.60
24.10
24.76
25.88
28.26
28.96
28.66
29.56
26.52
27.02
27.92
29.04
31.42
32.12
31.82
32.72
140 thru 210
250 thru 320
KA
Mtr Mt
Wt (lb)
KA
LA
Mtr Mt
Wt (lb)
15.00
15.00
15.00
15.00
15.00
15.00
15.00
15.00
60
60
75
75
80
80
80
80
16.00
16.00
20.00
20.00
20.00
20.00
20.00
20.00
0.08
2.80 ➅
1.92 ➅
4.94 ➅
8.38
115
115
170
175
195
190
190
190
Use
Figure
1
KA
LA
20.00 (+)3.52 ➆
20.00 (+)0.82 ➅ ➆
20.00
1.92 ➅
20.00
4.94 ➅
20.00
8.38
20.00
Use
20.00
Figure
1
20.00
HA ➃
Min
JA ➂
Max
PA
1.96
2.40
2.50
2.32
2.10
2.20
1.90
2.00
12.92
13.42
14.32
15.44
17.82
18.52
18.22
19.12
16.52
17.02
17.92
19.04
21.42
22.12
21.82
22.72
11.48
11.98
12.76
13.88
16.26
16.96
16.66
17.56
Dimension QA Standard
Assemblies Clock Positions
Dimension MA ➅
FC2, FC3, FC4
360 thru 400
3&9➄
O’clock
FA & GA
Addition
Mtr Mt
Wt (lb)
140
180
210
250
280
320
360
200
200
220
225
245
240
240
240
18.74
21.46
24.42
27.44
30.96
34.00
36.88
39.46
18.24
20.96
23.92
26.94
30.46
33.50
36.38
38.96
17.48
20.20
23.16
26.18
29.70
32.74
35.62
38.20
16.74
19.46
22.42
25.44
28.96
32.00
34.88
37.46
16.24
18.96
21.92
24.94
28.46
31.50
34.38
36.96
15.74
18.46
21.42
24.44
27.96
31.00
33.88
36.46
15.36
18.06
20.80
23.82
27.26
30.30
33.18
35.76
400
3
9
12
14.60 (-)0.84 ➇ (+)1.84 ➇ 2.24 ➇
17.32 (-)2.64 ➇ (-)1.76 ➇ 2.24 ➇
20.04 (-)2.44
(-)1.32
3.94
23.06 (-)2.44
(-)1.32
3.94
26.50 (-)0.40
(+)0.40
2.76
29.54 (-)0.40
(+)0.40
2.76
32.42 (-)2.76
(-)2.76
2.76
35.00 (-)2.76
(-)2.76
2.76
➀ Dimensions are for reference only and subject to change without notice unless certified.
➁ A support is furnished only for 250T and larger frames.
➂ When determining belt length for minimum shaft centers, follow the belt manufacturer’s installation allowance recommendations and also provide for future belt tensioning. Motors
may be shimmed up to 1.5".
➃ For 360 and 400 frames, add the following to the “HA” dimension: 0.68" for Sizes 2060 and 2070FC; 0.44" for Sizes 2080 thru 2130FC.
➄ To determine shaft centers for 3 & 9 o’clock mountings, add amount shown in the “3 & 9 o’clock Addition” column to the 12 o’clock FA & GA dimensions. Dimensions HA and JA will
increase the same amounts.
➅ Sizes 2070, 2110 and 2130FC2: add 0.12" to dimensions MA & LA; Sizes 2080 & 2090FC2: add 0.38" to dimensions MA & LA.
➆ Bracket extends beyond end of shaft; (+)LA is from end of shaft, (right), to end of bracket.
➇ Dimension QA for Sizes 2060 and 2070FC with the 360-400 motor frames are: add 0.46" for 3 o’clock; add 0.34" for 9 o’clock and use 4.34" for 12 o’clock.
© Rexnord 2014
63 (311-110)
Motor Adapters
Type MC / Dimensions–Inch
Type MC motor adapters provide for quick flange mounting of NEMA C-face motors
on UltraMax Type FC drives.
4-HOLES EQUALLY SPACED
FOR HH-DIA. BOLT
ON JJ-DIA. BOLT CIRCLE
BB
AA
H.S. SHAFT
KEY
C
FF
UA
GG
DD
Dimensions (in)
Motor
Adapter &
Drive Size ➀
Drive
Type &
Reduction
Motor
Frame Size
C
AA
BB
DD
FF
GG
HH
JJ
UA
Key
FC2
182-184
213-256
18.44
18.44
18.44
18.44
18.44
18.44
21.54
21.54
21.54
21.54
21.54
21.54
19.98
19.98
24.94
24.94
24.94
24.32
24.32
24.32
23.56
23.56
27.28
27.28
27.28
26.54
26.54
30.64
30.64
30.64
29.90
29.90
29.90
22.61
23.11
23.86
21.27
22.64
23.14
25.81
26.31
27.06
24.43
25.81
26.31
23.56
24.94
29.26
29.76
30.51
27.48
28.85
29.35
27.48
28.73
31.52
32.02
32.77
30.07
31.45
34.96
35.46
36.21
32.80
34.18
34.68
22.81
23.31
24.06
21.52
22.84
23.34
26.01
26.51
27.26
24.68
26.01
26.51
23.81
25.14
29.46
29.96
30.71
27.73
29.05
29.55
27.73
28.93
31.72
32.22
32.97
30.32
31.65
35.16
35.66
36.41
33.05
34.38
34.88
0.64
0.64
0.64
0.64
0.64
0.64
0.64
0.64
0.64
0.64
0.64
0.64
0.64
0.64
0.64
0.64
0.64
0.64
0.64
0.64
0.64
0.64
0.64
0.64
0.64
0.64
0.64
0.64
0.64
0.64
0.64
0.64
0.64
8.502
8.502
10.502
4.502
8.502
8.502
8.502
8.502
10.502
4.502
8.502
8.502
4.502
8.502
8.502
8.502
10.502
4.502
8.502
8.502
4.502
8.502
8.502
8.502
10.502
4.502
8.502
8.502
8.502
10.502
4.502
8.502
8.502
9.25
9.25
11.50
7.38
9.25
9.25
9.25
9.25
11.50
7.38
9.25
9.25
7.38
9.25
9.25
9.25
11.50
7.38
9.25
9.25
7.38
9.25
9.25
9.25
11.50
7.38
9.25
9.25
9.25
11.50
7.38
9.25
9.25
0.500
0.500
0.500
0.375
0.500
0.500
0.500
0.500
0.500
0.375
0.500
0.500
0.375
0.500
0.500
0.500
0.500
0.375
0.500
0.500
0.375
0.500
0.500
0.500
0.500
0.375
0.500
0.500
0.500
0.500
0.375
0.500
0.500
7.250
7.250
9.000
5.875
7.250
7.250
7.250
7.250
9.000
5.875
7.250
7.250
5.875
7.250
7.250
7.250
9.000
5.875
7.250
7.250
5.875
7.250
7.250
7.250
9.000
5.875
7.250
7.250
7.250
9.000
5.875
7.250
7.250
1.375
1.375
1.375
1.375
1.375
1.375
1.625
1.625
1.625
1.625
1.625
1.625
1.000
1.000
1.875
1.875
1.875
1.500
1.500
1.500
1.250
1.250
1.750
1.750
1.750
1.375
1.375
2.000
2.000
2.000
1.625
1.625
1.625
0.312 x 0.312 x 2.5
0.312 x 0.312 x 2.5
0.312 x 0.312 x 2.5
0.312 x 0.312 x 2.5
0.312 x 0.312 x 2.5
0.312 x 0.312 x 2.5
0.375 x 0.375 x 3.0
0.375 x 0.375 x 3.0
0.375 x 0.375 x 3.0
0.375 x 0.375 x 3.0
0.375 x 0.375 x 3.0
0.375 x 0.375 x 3.0
0.250 x 0.250 x 1.5
0.250 x 0.250 x 1.5
0.500 x 0.500 x 3.2
0.500 x 0.500 x 3.2
0.500 x 0.500 x 3.2
0.375 x 0.375 x 3.0
0.375 x 0.375 x 3.0
0.375 x 0.375 x 3.0
0.250 x 0.250 x 2.2
0.250 x 0.250 x 2.2
0.375 x 0.375 x 3.0
0.375 x 0.375 x 3.0
0.375 x 0.375 x 3.0
0.312 x 0.312 x 2.5
0.312 x 0.312 x 2.5
0.500 x 0.500 x 3.5
0.500 x 0.500 x 3.5
0.500 x 0.500 x 3.5
0.375 x 0.375 x 3.0
0.375 x 0.375 x 3.0
0.375 x 0.375 x 3.0
MC2040
FC3
FC2
MC2050
FC3
FC4
FC2
MC2060
FC3
FC4
FC3
MC2070
FC4
FC3
MC2080
FC4
284-286 ➂
56-145
182-184
213-215
182-184
213-256
284-286 ➂
56-145
182-184
213-256
56-145
182-184
213-215
254-256
284-286 ➂
143-145
182-184
213-256
56-145
182-184
182-184
213-256
284-286 ➂
56-145
182-215
182-215 ➁
254-256 ➁
284-286 ➂
56-145
182-184
213-215
➁ Motor frames 182-256 will have conduit box mounted at 45° for drive Size 2080F3 only.
➂ Adapter for motor frames 284-286 uses an 8-hole pattern.
64 (311-110)
© Rexnord 2014
Motor Plates
Type MP / Dimensions–Inch
PA-DIA. HAND HOLES
Type MP motor plates are used
to accommodate oversize motors,
special couplings, clutches or
brakes. Motor plates allow for
simplified installation of the total
assembly, and also provide a rigid,
“hard” mounting of the UltraMax and
motor when required.
KA
JA
RA
MA
MAX.
FLAT
RA
L.S. SHAFT
KEY
CA
LA
Hand holes provide access to
the drive, motor and motor plate
foundation bolts: they also provide
simplified handling and venting
when the motor plate is grouted in
place.
H.S. SHAFT COUPLING
GUARD (WHEN
SPECIFIED)
GAP
TO SUIT
MOTOR:
SHIM
BLOCKS
OR
PEDESTAL
Standard motor plates are available;
each plate accommodating two drive
sizes, for example, MP40/50 is for
size 2040/2050 drives.
D
DA
TA
VA
Q
FA
FA
6-HOLES
FOR HA DIA.
GRADE 5 BOLTS
VA
BA
EA
AA
EA
Special motor plates can be
designed to accommodate special
couplings, clutches, brakes and
prime movers which will not fit on
the standard motor plates shown
GA
here.
Dimensions (in)
F2
LA
F3
F4
14.50
33.52
33.52
NA
7.46
Drive
Size ➀
Motor Plate
(MP) Size
D
DA ±.14
2040
MP40/50
8.50
2050
2060
2070
2080
2090
MP40/50
9.60
15.60
31.62
31.62
33.18
8.66
MP60/70-2
10.60
16.60
22.06
22.68
23.44
8.50
MP60/70
10.60
16.60
40.06
40.68
41.44
8.50
MP60/70-2
11.66
17.66
19.66
20.72
21.46
9.50
MP60/70
11.66
17.66
37.66
38.72
39.46
9.50
MP80/90-2
12.78
21.78
37.02
38.06
38.80
11.20
MP80/90
12.78
21.78
52.02
53.06
53.80
11.20
MP80/90-2
15.74
24.74
34.82
36.24
36.98
12.40
MP80/90
15.74
24.74
49.82
51.24
51.98
12.40
BA
EA
FA
GA
Drive Size ➀
2040/2050
2060/2070
2080/2090
2100/2110
2120/2130
Motor Plate
(MP) Size
AA ➁
Drive Motor Plate
Size ➀ (MP) Size
Q
2100
2110
D
DA LA — W/O Backstop
±.14 FC2 FC3 FC4
LA — W/Backstop
FC2 FC3 FC4
Q
100/110-2 17.40 26.40 32.54 33.90 34.38 25.94 28.30 28.78 13.54
100/110
17.40 26.40 58.54 59.90 60.38 51.94 54.30 54.78 13.54
100/110-2 19.50 28.50 29.60 31.52 32.00 23.00 25.92 26.40 14.12
100/110
19.50 28.50 55.60 57.52 58.00 49.00 51.90 52.40 14.12
120/130-4 21.90 30.90 26.80 28.78 29.56 20.20 23.32 23.58 14.68
2120
120/130-2 21.90 30.90 46.80 48.78 49.56 40.20 43.32 43.58 14.68
120/130
21.90 30.90 74.80 76.78 77.56 68.20 71.32 71.58 14.68
120/130-4 24.70 33.70 24.68 27.28 28.06 18.08 21.82 22.08 15.76
2130
120/130-2 24.70 33.70 44.68 47.28 48.06 38.08 41.82 42.08 15.76
120/130
HA
JA
KA
24.70 33.70 72.68 75.28 76.06 66.08 69.82 70.08 15.76
MA
PA
RA
TA +.20
-.00
VA
Wt (lb)
(w/o drive)
MP40/50
20.00
46.00
7.50
21.50
0.50
1.000
0
15.50
18.00
5.00
6.70
5.90
1.50
270
MP60/70-2
25.00
40.00
10.00
18.50
0.50
1.000
0
20.00
23.00
6.00
8.00
5.90
1.50
272
MP60/70
25.00
58.00
10.00
27.50
0.50
1.000
1.00
22.00
23.00
6.00
8.00
5.90
1.50
380
MP80/90-2
30.00
60.00
11.80
27.50
0.75
1.500
0
23.30
26.50
6.00
9.00
8.90
2.50
874
MP80/90
30.00
75.00
11.80
35.00
0.75
1.500
1.00
31.00
26.50
6.00
9.00
8.90
2.50
980
MP100/110-2
35.00
60.00
14.20
27.50
0.75
1.500
0
30.00
31.50
6.00
12.00
8.90
2.50
942
MP100/110
35.00
86.00
14.20
40.50
0.75
1.500
2.00
36.00
31.50
6.00
12.00
8.90
2.50
1150
MP120/130-4
39.00
60.00
16.20
27.50
0.75
1.500
0
30.00
35.50
6.00
14.00
8.90
2.50
1008
MP120/130-2
39.00
80.00
16.20
37.50
0.75
1.500
0
38.24
35.50
6.00
14.24
8.90
2.50
1294
MP120/130
39.00
108.00
16.20
51.50
0.75
1.500
4.00
46.00
35.50
6.00
14.00
8.90
2.50
1610
➁ When a motor pedestal is furnished, dimension AA is 1.24" wider for MP 40/50, 1.50" wider for MP60 thru 90 and 1.00" wider for MP100 thru 130.
© Rexnord 2014
65 (311-110)
Slide Rails
Type SR / Dimensions–Inch
Type SR slide rails can be used in conjunction with UltraMax MP motor plates for
positioning of the drive assembly, and to facilitate chain and belt drive installation,
tensioning and service.
2 HOLES IN EACH RAIL FOR HB - DIA.
SAE GRADE 5 BOLTS
BOLTS & JACKSCREWS
FURNISHED BY FALK
KB
VB
TO SUIT MOTOR:
SHIM BLOCKS
OR PEDESTAL
L.S.
SHAFT
MAX.
TRAVEL
MINIMUM
MB
DB
GB
KB
KB
VB
FB
JB
KB
VB
VB
FB
NB
QB
PB
JB
NB
EB
CB
MAX.
AB
BB
Dimensions (in)
Slide Rail Motor Plate (MP)
& Drive
Size
Size ➀
AB
BB
CB Max
DB
EB
FB
GB
HB
JB
KB
MB
NB
PB Min
QB
VB
SR2040
MP40/50
40.00
50.00
4.20
18.26
37.40
21.50
0.75
1.00
4.00
7.00
6.44
1.30
13.00
7.46
3.50
SR2050
MP40/50
40.00
50.00
4.20
19.36
37.40
21.50
0.75
1.00
4.00
7.00
6.44
1.30
13.00
8.66
3.50
MP60/70-2
40.00
44.00
4.20
20.36
37.40
18.50
0.75
1.00
4.00
7.00
6.44
1.30
15.50
8.50
3.50
SR2060
SR2070
SR2080
SR2090
SR2100
SR2110
SR2120
SR2130
MP60/70
40.00
62.00
4.20
20.36
37.40
27.50
0.75
1.00
4.00
7.00
6.44
1.30
15.50
8.50
3.50
MP60/70-2
40.00
44.00
4.20
21.42
37.40
18.50
0.75
1.00
4.00
7.00
6.44
1.30
15.50
9.50
3.50
MP60/70
40.00
62.00
4.20
21.42
37.40
27.50
0.75
1.00
4.00
7.00
6.44
1.30
15.50
9.50
3.50
MP80/90-2
60.00
64.60
3.38
27.04
56.00
27.50
1.00
1.50
6.00
9.60
7.20
2.00
19.30
11.20
4.80
MP80/90
60.00
79.60
3.38
27.04
56.00
35.00
1.00
1.50
6.00
9.60
7.20
2.00
19.30
11.20
4.80
MP80/90-2
60.00
64.60
3.38
30.00
56.00
27.50
1.00
1.50
6.00
9.60
7.20
2.00
19.30
12.40
4.80
MP80/90
60.00
79.60
3.38
30.00
56.00
35.00
1.00
1.50
6.00
9.60
7.20
2.00
19.30
12.40
4.80
MP100/110-2
60.00
64.60
3.38
31.66
56.00
27.50
1.00
1.50
6.00
9.60
7.20
2.00
21.80
13.54
4.80
MP100/110
60.00
90.60
3.38
31.66
56.00
40.50
1.00
1.50
6.00
9.60
7.20
2.00
21.80
13.54
4.80
MP100/110-2
60.00
64.60
3.38
33.76
56.00
27.50
1.00
1.50
6.00
9.60
7.20
2.00
21.80
14.12
4.80
MP100/110
60.00
90.60
3.38
33.76
56.00
40.50
1.00
1.50
6.00
9.60
7.20
2.00
21.80
14.12
4.80
MP120/130-4
60.00
64.60
3.38
36.16
56.00
27.50
1.00
1.50
6.00
9.60
7.20
2.00
23.80
14.68
4.80
MP120/130-2
60.00
84.60
3.38
36.16
56.00
37.50
1.00
1.50
6.00
9.60
7.20
2.00
23.80
14.68
4.80
MP120/130
60.00
112.60
3.38
36.16
56.00
51.50
1.00
1.50
6.00
9.60
7.20
2.00
23.80
14.68
4.80
MP120/130-4
60.00
64.60
3.38
38.96
56.00
27.50
1.00
1.50
6.00
9.60
7.20
2.00
23.80
15.76
4.80
MP120/130-2
60.00
84.60
3.38
38.96
56.00
37.50
1.00
1.50
6.00
9.60
7.20
2.00
23.80
15.76
4.80
MP120/130
60.00
112.60
3.38
38.96
56.00
51.50
1.00
1.50
6.00
9.60
7.20
2.00
23.80
15.76
4.80
66 (311-110)
© Rexnord 2014
Slide Bases
Type SB / Dimensions–Inch
Type SB slide bases provide for convenient positioning of UltraMax drives, and facilitate
chain and belt installation tensioning and service. The slide base is permanently bolted
to the foundation, and when a change of position is desired, the drive is easily shifted
by loosening the gear drive foundation bolts and turning the adjusting screws. After the
desired belt or chain tension is obtained, the drive foundation bolts are tightened, and the
machine is ready for operation. All drives on slide bases are available with motor mounts
in the 12 o’clock position; Sizes 2090 and larger are also available with motor mounts in
the 3 and 9 o’clock positions.
CENTERLINE FOR
SLIDE BASE AND
UNIT FEET BOLTS
4-HOLES FOR HB - DIA.
SAE GRADE 5 BOLTS
L.S.
SHAFT
BOLTS &
JACKSCREWS
FURNISHED
BY REXNORD
DB
MAX.
TRAVEL
MB
MINIMUM
GB
JB
VB
VB
FB
FB
JB
PB
Q
NB
BB
NB
EB
CB
AB
MAX
Dimensions (in)
Slide Base &
Drive Size ➀
Q
AB
BB
CB Max
DB
EB
FB
GB
HB
JB
MB
NB
PB Min
VB
Wt (lb)
Approx.
SB2040
6.86
25.02
10.20
3.36
10.76
23.22
3.05
0.50
0.750
2.50
4.10
0.90
9.54
2.05
41
SB2050
8.10
28.30
11.60
3.56
12.36
26.30
3.55
0.50
0.875
3.00
4.70
1.00
10.80
2.25
62
SB2060
8.00
31.32
14.70
2.78
13.86
28.72
5.00
0.62
1.000
3.50
4.70
1.30
12.00
2.35
92
SB2070
9.20
33.72
16.40
2.90
14.92
31.12
5.65
0.62
1.125
3.50
4.70
1.30
13.20
2.55
104
SB2080
10.00
37.68
19.00
4.18
16.54
34.88
6.60
0.75
1.250
4.00
5.70
1.40
14.58
2.90
169
SB2090
11.50
44.72
21.00
2.18
20.00
39.72
7.15
1.00
1.500
6.00
5.70
2.50
17.00
3.35
228
SB2100
13.14
46.16
21.20
2.26
21.66
41.16
7.48
1.00
1.500
6.00
5.70
2.50
17.72
3.12
264
SB2110
13.72
49.10
23.60
3.22
25.76
44.10
8.64
1.00
1.500
6.00
6.76
2.50
18.66
3.16
344
SB2120
14.58
52.12
25.60
3.24
28.16
47.12
9.40
1.00
1.750
6.00
6.76
2.50
20.18
3.40
382
SB2130
16.16
53.64
26.20
3.24
30.96
48.64
9.65
1.00
1.750
6.00
6.76
2.50
20.94
3.45
394
➀ Dimensions are for reference only and are subject to change without notice unless certified. All drives on slide bases are available with motor mounts in the 12 o’clock position; Sizes
2090 and larger are also available with motor mounts in the 3 and 9 o’clock positions.
© Rexnord 2014
67 (311-110)
Backstops
Type IBS & EBS / Dimensions–Inch
Prevent Reverse Rotation
Backstops provide positive prevention of reverse rotation or backrun without backlash
on conveyors, elevator head shafts and similar applications. Designed as standard
accessories, backstops can be furnished on all horizontal concentric shaft drives.
EXTERNAL BACKSTOP
NA
USABLE
LENGTH
To prevent damage to backstops due to incorrect motor shaft rotation at start-up,
couplings are NOT assembled when drives are furnished with backstops. After
completing the electrical connection, check motor and driveshaft rotations. Then
complete alignment and assembly of coupling.
C
UA
DO NOT use a backstop as a substitute for a brake.
Both types of backstops (internal or external) are designed to prevent reverse rotation
5 times or less in eight hours, with one minute or more in the over-running direction
between backstopping load applications. If backstopping operations are more frequent,
or the time between operations is less than one minute, the backstop is classified as
a working or indexing device and the application must be referred to the Factory for
selection. When ordering, specify low-speed shaft rotation when viewing drive from the
end of the low-speed shaft.
External (Pawl Type)
Drive Sizes 2100 thru 2130
DO NOT use Falk External Backstops (Pawl Type) in tandem. Refer to Factory all
applications involving the need for two or more backstops in one system. The Falk Pawl
type backstop is designed to operate during overrunning within a speed range of 400 to
1800 rpm. Contact Factory for creep drive applications and for continuous speeds less
than 400 rpm, or greater than 1800 rpm. Refer to Factory for tilt limits of backstops.
TYPE FC — External Pawl type backstop is mounted on extended high-speed shaft. Refer
to backstop selection table on page 69 for all backstop selections.
TYPE FZ — External Pawl type backstop is mounted on extended high-speed shaft.
Motor brackets for drives with external backstops may be slightly longer and are
furnished blank (not drilled). Refer to price list for information required by Rexnord to
drill and/or mount motor. Falk self-contained backstop, precision manufactured for
either direction of rotation. Backstop housing, case-hardened on the inner periphery,
precision ground. Pawls pivot about hardened steel pins in forged rotor hub. Bearings are
pre-lubricated and sealed (or shielded) and require no future lubrication. Grease-purged
seals are standard on Pawl Type. Drive dimensions with and without external backstops
are identical except for the high-speed shaft extension.
Internal (IBS) cartridge type
Drive Sizes 2040 thru 2090
Internal backstop, cartridge type, compact, reliable and no measurable power loss.
Can be added, removed or reversed without disturbing revolving elements. Mounted
internally on the outer end of the low-speed pinion shaft, backstop load transmitted only
through low speed gear set. Positive continuous lubrication, 50% or more of backstop
is immersed in oil. Drive dimensions with and without backstops are identical except for
dimension W shown on dimension pages. Backstops are NOT available for drive Sizes
2040-2090 with 1.5 thru 4.57:1 ratios.
Drive Size
➀
C
2100
45.10
2110
48.62
2120
2130
Double Reduction — FC2/FZ2
NA
UA
Key
Ratio Range
5.06-13.95
5.24
2.7500 0.625 x 0.625 x 11.00
17.09-31.39
6.22
2.1250 0.500 x 0.500 x 11.00
7.59-20.93
5.62
3.0000 0.750 x 0.750 x 11.50
25.63-31.39
6.62
2.1250 0.500 x 0.500 x 11.50
51.98
11.39-31.39
6.22
55.18
13.95-31.39
6.76
C
Triple Reduction — FC3/FZ3
NA
UA
Key
C
Quadruple Reduction — FC4/FZ4
NA
UA
Key
42.74
3.88
2.1250 0.500 x 0.500 x 9.00
42.26
3.38
1.8750 0.500 x 0.500 x 8.00
45.70
3.82
2.1250 0.500 x 0.500 x 9.00
45.22
3.32
1.8750 0.500 x 0.500 x 8.00
3.2500 0.750 x 0.750 x 12.00
48.86
4.00
2.1250 0.500 x 0.500 x 9.00
48.60
3.74
2.0000 0.500 x 0.500 x 8.00
3.5000 0.875 x 0.875 x 12.50
51.44
4.00
2.1250 0.500 x 0.500 x 9.00
51.18
3.76
2.0000 0.500 x 0.500 x 8.00
➁ Shaft diameters under 3" are held to limits of +.0000", -.0005". Shaft diameters 3" and over are held to limits of +.000", -.001". Shaft keyseat depth is one-half of key height. Key
extends from the end of the shaft through the backstop.
68 (311-110)
© Rexnord 2014
Backstops
External (Pawl Type) Backstop Selection/580 RPM or Higher
Type EBS
Nominal Ratios
2100
Drive Size
2110
2120
2130
5.06
5.06
➀ Drive rating exceeds
backstop rating.
Refer to Rexnord.
6.20
Double Reduction
7.59
7.59
9.30
9.30
11.39
13.95
17.09
25.63
31.39
Triple Reduction
6.20
11.39
#60 Backstop
20.93
Quadruple Reduction
Nominal
Ratios
13.95
17.09
20.93
#20 Backstop
25.63
31.39
38.44
38.44
47.08
47.08
57.66
57.66
70.62
86.50
70.62
#20 Backstop
86.50
105.90
105.90
129.70
129.70
158.90
158.90
194.60
194.60
238.40
238.40
291.90
291.90
357.50
357.50
437.90
536.30
#20 Backstop
437.90
536.30
656.80
656.80
804.50
804.50
985.30
985.30
➀ Gear drive maximum rating at 580 RPM exceeds #60 B1F rating. #60 backstop may
be used only if required high-speed shaft torque is less than 40,320 lb-in.
© Rexnord 2014
69 (311-110)
Electric Fans
Type EF / Dimensions–Inch
Electric fans achieve thermal capacities up to twice that of shaft fans, are unaffected
by shaft rotation and speeds, and are thermostatically controlled to shut off when not
required. Electric fans can be mounted on either side of the UltraMax and permit full use
of the UltraMax usable shaft extensions. Electric fans are available with the following
motor packages:
60 Hz, 3 Phase, 220/380 VAC
60 Hz, 3 Phase, 265/460 VAC
50 Hz, 3 Phase, 220/380 VAC
Other motor package options may be available. Consult Factory for selection, price and
delivery.
5.00
SUMP TEMPERATURE
SWITCH
0.75
J
0.75
B
7.25
B
D
0.75
K
CLEARANCE
D
0.75
F
CLEARANCE
0.75
FAN DIA.
STANDARD
LOCATION
OPTIONAL
LOCATION
H.S. END
Dimensions (in)
Eletric, Drive Size &
Reduction ➀
Electric Fan Dia
B
D
F
J
K
EF2060 FC2/3 & FZ2/3
12
24.63
6.9
17.73
17.05
14.30
EF2070 FC2/3 & FZ2/3
12
25.59
7.9
17.69
19.05
14.87
EF2080 FC2/3 & FZ2/3
12
26.33
8.7
17.63
21.42
15.37
EF2090 FC2/3 & FZ2/3
14
28.21
9.6
18.61
23.30
16.53
EF2100 FC2/3 & FZ2/3
16
30.15
10.7
19.45
25.05
17.20
EF2110 FC2/3 & FZ2/3
18
32.01
11.6
20.41
27.67
18.40
EF2120 FC2/3 & FZ2/3
20
34.12
12.6
21.52
30.05
19.78
EF2130 FC2/3 & FZ2/3
22
37.93
13.5
24.43
31.55
20.66
➀ Dimensions are for reference only and are subject to change without notice unless certified. Drawings are representative of this series of drives and may not agree in exact detail for all
drive sizes.
70 (311-110)
© Rexnord 2014
Cooling Tubes
Type CT / Dimensions–Inch
Cooling tubes are an economical alternative to pumps and coolers for thermal
requirements beyond the range of fans. Water is circulated through a series of finned
tubes in the sump of the drive. All joints and connections are external, eliminating any
chance of leakage into the drive.
WATER INLET & OUTLET CONNECTIONS
(All Sizes & Reductions)
A minimum flow rate of 2 gallons per minute of clean water is required to prevent tube
fouling. The maximum flow rate to prevent tube erosion is 5 gallons per minute. Thermal
power ratings are based on a water inlet temperature of 70°F (21°C) with 2 gallons per
minute flow rate.
WATER OUTLET
0.500 - 14 NPT
1.25
SIDE WALL
OF DRIVE
0.60
WATER INLET
0.500 - 14 NPT
Provide Clearance for Water Connections
DRIVE SIZES 2060F, 2070F, & 2080F ALL REDUCTIONS & RATIOS (1.50 - 985:1) DRIVE SIZES 2090F2 - RATIOS (1.50 - 4.57:1 ONLY)
L.S.
END
H.S.
END
AJ
WATER
OUT
AH
AF
0.10
(0.20 ON
2090F
ONLY)
WATER IN
AG
AL
AX CLEARANCE
FOR TUBE REMOVAL
AK
DRIVE SIZES 2090F2, F3, & F4 RATIOS (5.06 - 985:1) DRIVE SIZES 2100-2130F ALL REDUCTIONS & RATIOS (1.50 - 985:1)
L.S.
END
H.S.
END
AJ
WATER
OUT
AH
AF
AG
0.20
(0.10 ON
2120F
ONLY)
WATER IN
AL
AX CLEARANCE
FOR TUBE REMOVAL
AK
Dimensions (in)
Cooling Tube &
Drive Size ➀
Drive Reduction
AF
AG
AH
AJ
AK
AL
AX
Std Number of
Tubes
CT2060
FC/FZ 2, 3 & 4
2.16
3.80
4.56
1.80
2.7
2.8
19.0
2
CT2070
FC/FZ 2, 3 & 4
2.16
4.35
3.81
2.08
2.6
2.8
21.2
2
CT2080
FC/FZ 2, 3 & 4
2.30
5.40
3.81
2.39
2.4
2.6
22.4
2
CT2090
FC/FZ 2, 3 & 4
2.59
5.60
6.13
2.32
1.7
1.8
23.3
4
CT2090
FC/FZ 2 ➁
2.59
5.60
4.10
2.59
1.7
1.8
23.3
2
CT2100
FC/FZ 2, 3 & 4
2.75
6.11
6.29
2.83
1.6
1.7
25.0
4
CT2110
FC/FZ 2, 3 & 4
2.75
6.50
6.29
3.22
2.0
2.1
27.4
4
CT2120
FC/FZ 2, 3 & 4
2.99
8.52
6.74
2.94
1.4
1.6
28.9
6
CT2130
FC/FZ 2, 3 & 4
2.99
8.19
8.83
6.23
1.4
1.5
30.5
8
➀ Dimensions are for reference only and are subject to change without notice unless certified. Drawings are representative of this series of drives and may not agree in exact detail for all
drive sizes.
➁ Ratios 1.50 thru 4.57 only.
© Rexnord 2014
71 (311-110)
Reliability Package
Type FC & FZ Double, Triple & Quadruple Reduction — Sizes 2040 to 2050 / Dimensions–Inch
Dimensions (in)
Drive Size
A
B
C
2040
22.64
4.70
8.40
0.80
2050
24.30
5.10
8.90
0.35
72 (311-110)
D
© Rexnord 2014
Reliability Package
Type FC & FZ Double, Triple & Quadruple Reduction — Sizes 2060 to 2130 / Dimensions–Inch
Dimensions (in)
Drive Size
A
B
C
D
2060
26.07
2.60
9.53
0.50
2070
27.63
2.30
10.49
0.18
2080
31.18
1.93
10.83
N/A➀
2090
35.26
1.71
12.14
N/A➀
2100
38.00
2.03
12.95
N/A➀
2110
40.80
1.97
13.76
N/A➀
2120
45.86
1.49
14.51
N/A➀
2130
49.56
1.61
15.39
N/A➀
➀ Dimension D is Not Applicable because the quick disconnect outlet does not protrude from the foot of the unit.
© Rexnord 2014
73 (311-110)
Coupling Guards
Rexnord has designed the UltraMax end of the guard for close mounting, minimal
clearance and maximum guarding. The buyer assumes full responsibility for proper
guarding of the driven machine end to applicable national and local standards.
Falk UltraMax standard low-speed coupling guards provide quick delivery at a low price.
In stock at Rexnord, each guard is designed for a specific size UltraMax, and can be
adjusted to suit a number of standard couplings and driven equipment requirements. The
guards are 14 gauge steel, painted with Rexnord standard paint. Safety Yellow paint can
be provided at additional cost with extended delivery.
For special, made-to-order guards, provide complete details to your Rexnord district
office for a quotation.
0.50
FA
6 - MOUNTING HOLES
0.375 DIA THRU
(9) - TAPPING SCREW
#8-18 X 0.375
0.50
LA
BA
HA
DA
0.38
EA
0.50
0.38
FA
0.50
CA
6 - MOUNTING HOLES
0.375 DIA THRU
AA
Dimensions (in)
Drive Size
Guard Part
Number
AA
BA
CA
DA
EA
FA
HA
LA Min-Max
Max Coupling Size
Type T
Type G
2040
787354
13.05
10.55
3.68
8.50
4.00
3.75
13.77
6.27-11.15
1080
1030
2050
787355
13.42
10.92
3.91
9.60
4.50
5.00
15.06
7.65-13.65
1090
1030
2060
787356
15.10
12.55
3.22
10.60
4.75
5.75
16.90
8.40-15.15
1100
1035
2070
787357
16.05
13.55
3.44
11.66
5.25
7.25
18.44
9.88-18.14
1110
1040
2080
787358
17.30
14.80
3.72
12.78
5.50
7.75
20.18
10.41-19.16
1120
1045
2090
787359
18.80
16.30
4.24
15.74
6.00
9.38
23.89
12.02-22.40
1130
1050
2100
787360
20.30
17.80
4.89
17.40
6.50
11.00
26.30
13.32-25.65
1140
1055
2110
787361
23.05
20.55
5.00
19.50
7.00
11.75
29.76
14.41-27.16
1150
1060
2120
787362
24.80
22.30
5.34
21.90
7.50
13.25
33.05
15.90-30.15
1160
1070
2130
787363
27.41
25.05
5.90
24.70
8.30
14.75
37.23
17.40-33.15
1170
1070
74 (311-110)
© Rexnord 2014
866-REXNORD/866-739-6673 (Within the US)
414-643-2366 (Outside the US)
www.rexnord.com
Why Choose Rexnord?
When it comes to providing highly engineered products that
improve productivity and efficiency for industrial applications
worldwide, Rexnord is the most reliable in the industry.
Commitment to customer satisfaction and superior value
extend across every business function.
Delivering Lowest Total Cost of Ownership
The highest quality products are designed to help
prevent equipment downtime and increase productivity
and dependable operation.
Valuable Expertise
An extensive product offering is accompanied by global sales
specialists, customer service and maintenance support teams,
available anytime.
Solutions to Enhance Ease of Doing Business
Commitment to operational excellence ensures the right
products at the right place at the right time.
Rexnord Company Overview
Rexnord is a growth-oriented, multi-platform industrial company with leading market
shares and highly trusted brands that serve a diverse array of global end markets.
Process and Motion Control
The Rexnord Process & Motion Control platform designs, manufactures, markets
and services specified, highly engineered mechanical components used within complex
systems where our customers’ reliability requirements and the cost of failure or
downtime are extremely high.
Water Management
The Rexnord Water Management platform designs, procures, manufactures
and markets products that provide and enhance water quality, safety, flow
control and conservation.
©2014 Rexnord 311-110 Printed in USA 06/14

Falk UltraMax Concentric Gear Drives

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